Rewinding assembly

Abstract

The present invention is a rewinding assembly (1) for a system (900) that performs work on a web (500). The above rewinding assembly (1): is, i) a mandrel group (2) suitable for receiving a reel of a processed web (500) and extending with respect to a rewinding axis (RR), comprising a mandrel shaft (20) that can be rotatably driven to rewind the web (500); ii) an arm group (3) comprising an arm (30) extending radially with respect to the rewinding axis (RR) and a roller (35) disposed at the end of the arm (30), wherein the web (500) is unwound toward the reel on the roller (35); and iii) includes a connection group (4) suitable for connecting the mandrel shaft (20) to the arm (30). The above connection group (4) is suitable for rotating the mandrel shaft (20) and is coupled to the arm (30) so that the arm (30) can move in an angular direction as the rotational motion of the mandrel shaft (20) changes. The above connection group (4) includes a clutch device (49) which is coupled to the mandrel shaft (20) through a frictional motion and can vary the frictional motion as the rotational speed of the mandrel shaft (20) changes, and as the frictional motion changes, the angular position of the arm (30) can be varied between an initial position and a varied angular position to change the path of the web (500) released from the roller (35).

Description

Technology Field

[0001] The present invention relates to a rewinding assembly. Furthermore, the present invention relates to a system comprising said rewinding assembly and performing operations on a web. Background Technology

[0002] In the prior art, embodiments of systems that perform operations on the web are known.

[0003] In this specification, the term “web” refers to any type of product in the form of a thin, flexible strip, such as a film or foil.

[0004] In particular, the above systems include work assemblies suitable for performing specific tasks on a web, and said work assemblies receive a web to be processed from an inlet and return a processed web as a result from an outlet.

[0005] According to a well-known embodiment, among the embodiments of the systems is a labeling system. A working assembly of the labeling system receives a web to be processed, i.e., a web to be processed with a label attached, and returns a processed web, i.e., a web without a label (with the label removed). The working assembly separates the label and places (attaches) it on a product, or transfers the label to another assembly of the system that places the label on the product.

[0006] To perform the above tasks on the web, the notification systems perform the movement of the web, in which the speed changes over time or the pulling or pushing motion changes.

[0007] In particular, the above-described systems include a reel of processed web, that is, a rewinding assembly on which already used web is wound. Preferably, said web is wound onto said reel received in a rotary-driven rewinding assembly. In certain embodiments, said rewinding assembly is guided to be rotated by a pulling assembly that pulls the web to be processed.

[0008] In existing embodiments, it was found that web breakage and inefficient rewinding occurred during the rotational operation of the rewinding assembly.

[0009] In addition, the solutions of the notification systems are particularly complex, moving the web in a complex manner and identifying numerous critical problems, especially numerous overheating points.

[0010] These problems become more significant, for example, as the label is larger and / or the aforementioned operations are performed faster, as the operations performed by the work assembly on the web become more complex. The problem to be solved

[0011] The objective of the present invention is to propose a system that satisfies all the aforementioned requirements while minimizing or resolving the aforementioned problems. means of solving the problem

[0012] This objective is achieved by the rewinding assembly claimed in claim 1, that is, by a rewinding assembly suitable for controlling the rolling of the web, i.e., the rewinding of the web, in a simplified manner. This objective is also achieved by a system comprising said rewinding assembly as claimed in claim 13. Claims dependent thereon require protection for additional features and entail additional technical advantages. Brief explanation of the drawing

[0013] Additionally, further features and advantages of the present invention will become clear from the following description of preferred embodiments provided as non-limiting examples with reference to the accompanying drawings. - FIGS. 1a, 1b, and 1c are three schematic diagrams of a system according to the present invention in an initial rising-arm configuration, an intermediate configuration, and a final falling-arm configuration, respectively; - FIGS. 2a and 2b respectively illustrate two perspective views of a rewinding assembly according to the present invention set in an initial configuration; - FIG. 2c shows a front view of the rewinding assembly of FIG. 2a and FIG. 2b; - FIG. 3a illustrates a cross-sectional view following planar section AA of FIG. 2c; - FIG. 3b illustrates a vertical cross-sectional view along the planar cross-section BB of FIG. 2c; - FIGS. 4a and 4b respectively illustrate two perspective views of a rewinding assembly according to the present invention set as an intermediate configuration; - FIG. 4c is a front view of the rewinding assembly of FIG. 4a and FIG. 4b; - FIG. 5a shows a cross-sectional view following planar section AA of FIG. 4c; - FIG. 5b illustrates a vertical cross-sectional view following the planar cross-section BB of FIG. 4c; - FIGS. 6a and 6b respectively illustrate two perspective views of a rewinding assembly according to the present invention set in a final configuration; - FIG. 6c shows a front view of the rewinding assembly of FIG. 6a and 6b; - FIG. 7a illustrates a cross-sectional view following planar section AA of FIG. 6c; - FIG. 7b illustrates a vertical cross-sectional view following the planar section BB of FIG. 6c; and - FIGS. 8a and FIG. 8b respectively show two perspective views of some components of a connection group included in a rewinding assembly according to a preferred embodiment of the present invention. Specific details for implementing the invention

[0014] Referring to the attached drawing, the entire rewinding assembly according to the present invention is indicated by the number "1".

[0015] Conversely, the number "900" represents a system that performs operations on the web (500). The system (900) includes the rewinding assembly (1).

[0016] The above system (900) also includes an unwinding assembly (910) for receiving a web (500), a work assembly (920) suitable for performing work on the web (500), and a pulling assembly (950) suitable for pulling the web (500).

[0017] The above recommendation assembly (910) is an inlet of the above system (900).

[0018] The reel of the web (500) to be processed is actually received in the winding assembly (910). That is, the winding assembly (910) is suitable for allowing the web (500) to be processed to be unwound by rewinding the reel of the web (500) received in the rewinding assembly (1).

[0019] The above rewinding assembly (1) is an outlet of the above system (900).

[0020] In fact, a reel of the processed web (500) is received in the rewinding assembly (1). In particular, the rewinding assembly (1) winds the processed web (500) to form a reel of the processed web.

[0021] According to a preferred embodiment, the rewinding assembly (1) is induced to rotate to perform rewinding, i.e., rolling, of the web (500).

[0022] According to a preferred embodiment, the rewinding assembly (1) is operatively connected to the pulling assembly (950). The rewinding assembly (1) is preferably induced to rotate by the pulling assembly (950). That is, the pulling assembly (950) performs a pulling action on the web (500) while simultaneously driving the rotation of the rewinding assembly (1).

[0023] The above system (900) preferably includes a driving member extending from the pulling assembly to the rewinding assembly (1), in particular to a pulley (48) received within the rewinding assembly (1).

[0024] Preferably, the driving member is a belt, chain, or toothed band.

[0025] Preferably, the pulling action performed by the pulling assembly (950) is variable. Preferably, the pulling action by the pulling assembly (950) is performed at a variable speed. That is, the pulling action performed by the pulling assembly (950) does not have the same continuity over time.

[0026] Likewise, the rotational motion of the rewinding assembly (1) is also variable. Preferably, the rotational motion by the rewinding assembly (1) is performed at a variable speed. That is, the rotational motion performed by the rewinding assembly (1) does not have the same continuity over time.

[0027] According to a preferred embodiment, the system (900) is a labeling system. Preferably, therefore, the work assembly (920) performs a labeling operation, and actually, the reel of the web (500) received in the reeling assembly (910) contains a labeled web, i.e., a web to be processed, and the reel on the re-winding assembly (1) contains an unlabeled web, i.e., a processed web.

[0028] Preferably, the work assembly (920) separates the labels and places them on the product.

[0029] Preferably, the work assembly (920) separates the labels to transfer them to another assembly, and the other assembly then places them on the product.

[0030] It is noted that, with the exception of some specific features of the system (900), particularly some specific features of the rewinding assembly (1) described below, the system (900) may be suitable for including a plurality of free or induced wheels and / or cylinders suitable for identifying (specifically) a specific track / path of the web (500). The number and / or location and / or shape of said components do not limit the subject matter of the invention in any way.

[0031] According to the present invention, the rewinding assembly (1) includes a mandrel group (2) suitable for receiving a reel of a web (500) to be processed or rewound.

[0032] The reel of the web (500) can be accommodated to rotate together with the mandrel group (2) according to the rotational motion experienced by the mandrel group (2).

[0033] The above mandrel group (2) is extended with respect to the rewinding axis (RR).

[0034] The above mandrel group (2) includes a mandrel shaft (20). The mandrel shaft (20) extends along the rewinding axis (RR).

[0035] Preferably, the mandrel shaft (20) is rotatable about the rewinding axis (RR) and receives a rotational movement.

[0036] According to a preferred embodiment, the reel is engaged with the mandrel shaft (20) so as to rotate integrally with the mandrel shaft (20).

[0037] In other words, the induced rotational motion rotates the mandrel shaft (20) and, as a result, rewinds the web onto the reel.

[0038] According to a preferred embodiment, the mandrel group (2) further includes a reel plate (29) suitable for providing axial support to the web (500) and the reel including the web.

[0039] Preferably, the reel plate (29) has a radial extension with respect to the rewinding axis (RR).

[0040] According to a preferred embodiment, the reel plate (29) rotates together with the reel.

[0041] Additionally, the rewinding assembly (1) includes an arm group (3) having an arm (30) and a roller (35) disposed at the end of the arm (30).

[0042] The above arm (30) extends radially with respect to the rewinding axis (RR), and the roller (35) is positioned at the end of the arm (30) away from the rewinding axis (RR).

[0043] The roller (35) extends along a roller axis (XX) substantially parallel to the rewinding axis (RR), and the web (500) is unwound on the roller (35) toward the reel.

[0044] Preferably, the roller (35) is rotatably connected to the arm (30) so as to be able to rotate freely around the roller axis (XX).

[0045] According to the present invention, furthermore, the rewinding assembly (1) includes a connection group (4) suitable for connecting the mandrel shaft (20) to the arm (30).

[0046] In particular, the above connection group (4) is suitable for rotating the mandrel shaft (20).

[0047] In particular, the above connection group (4) is suitable for connecting the arm (30) so that the arm (30) can be moved in an angular direction as the pulling action on the web (500) changes.

[0048] The above connection group (4) is actually suitable for maintaining the roller (35) in its initial position along the arm (30) and is suitable for allowing variation in the angular position of the roller (35), and thus the arm (30), as the rotational operation changes.

[0049] The above connection group (4) is preferably suitable for enabling variation in the angular position of the roller (35) as the rotational movement increases.

[0050] According to a preferred embodiment, the initial position of the roller (35) corresponds to a raised position.

[0051] According to a preferred embodiment, the position where the angle of the roller (35) changes corresponds to a lowered position.

[0052] That is, according to a preferred embodiment, the lowering of the roller (35) can also be aided by the action of gravity.

[0053] Preferably, according to a preferred embodiment, the web (500) extends around the roller (35) to form an eyelet (a ring-shaped structure that wraps around a part of the roller), and preferably engages over about half of the circumference of the roller (35).

[0054] Additionally, according to the present invention, the connection group (4) includes a clutch device (49) that is coupled to the mandrel shaft (20) with the help of a frictional action (operation).

[0055] According to the present invention, the clutch device (49) performs a starting friction operation corresponding to a high (high speed) rotational operation. According to the present invention, the clutch device (49) varies the friction operation as the rotational speed experienced by the mandrel shaft (20) changes.

[0056] A high rotational speed of the mandrel shaft (20) corresponds to strong friction. A low rotational speed of the mandrel shaft (20) corresponds to weak friction.

[0057] As the operation of the above clutch device (49) changes, a change in the angle position of the arm (30) suitable for changing the path taken by the web (500) occurs in response.

[0058] According to a preferred embodiment, the clutch device (49) includes a plurality of clutch discs (490, 491, 492) concentric with the rewinding shaft (RR).

[0059] Preferably, at least one clutch disc (492) is integrally connected to the mandrel shaft (20). Depending on the operating intensity of the clutch disc (492), a larger or smaller frictional movement of the disc integrally connected to the mandrel shaft (20) is allowed.

[0060] According to a preferred embodiment, at least one clutch disc (491) is made of plastic material.

[0061] According to a preferred embodiment, the clutch disc (491) is made of reinforced PTFE.

[0062] Preferably, the clutch device (49) is positioned at the shaft end of the mandrel shaft (20).

[0063] Preferably, the arm (30) is positioned in an area axially far from the clutch device (49).

[0064] According to one variant embodiment, the clutch device (49) includes a cooling element (495) having a plurality of cooling fins suitable for promoting cooling of the clutch discs (490, 491, 492).

[0065] According to a preferred embodiment, the connection group (4) includes a connection device (40) operably connected to the clutch device (49) and the arm (30).

[0066] That is, the connecting device (40) is positioned along the rewinding shaft (RR) between the arm (30) and the clutch device (49).

[0067] Furthermore, according to a preferred embodiment, the connection group (4) includes an elastic member (45) that acts on the connection device (40) to perform the operation of placing the arm (30) in a normal initial position, preferably in an elevated position.

[0068] According to a preferred embodiment, the elastic member (45) is a helical spring (450). One end of the helical spring (450) is therefore coupled to the connecting device (40).

[0069] The above connecting device (40) is preferably centered on the rewinding axis (RR) and extends along this axis.

[0070] Preferably, the connecting device (40) extends around the mandrel shaft (20).

[0071] Preferably, the connecting device (40) is rotatable about the rewinding axis (RR). Preferably, the arm group (3) extends substantially radially from the connecting device (40).

[0072] According to a preferred embodiment, the connecting device (40) includes a first connecting group (41) coupled to the arm (30), and a second connecting group (42) coupled to the elastic member (45) and the clutch device (49).

[0073] According to a preferred embodiment, the connecting device (40) includes a connecting means (43) suitable for operatively connecting the first connecting group (41) to the second connecting group (42).

[0074] Preferably, the connecting device (40) acts as a cam member, and the relative angular positions of the first connecting group (41) and the second connecting group (42) cause different axial movements between the two.

[0075] According to a preferred embodiment, the first connection group (41) includes a first surface (410) and the second connection group (42) includes a second surface (420), the surfaces face each other along the rewinding axis (RR), and the connection means (43) is suitable for operating on the first and second surfaces.

[0076] According to a preferred embodiment, the first surface (410) has one or more inclined surfaces having an inclination angle "α".

[0077] According to a preferred embodiment, the second surface (420) has one or more inclined surfaces having an angle of inclination "α".

[0078] According to a preferred embodiment, the angle of inclination (α) is the angle of inclination of the inclined surface with respect to the radial direction.

[0079] According to a preferred embodiment, the angle of inclination (α) is the angle of inclination of the inclined surface with respect to the circumferential direction.

[0080] According to a preferred embodiment, the inclined surface is inclined by an angle of inclination (α) with respect to both the radial and circumferential directions.

[0081] According to a preferred embodiment, the connecting means (43) includes at least one sliding element (430) that slides on the first surface (410) and on the second surface (420) in a manner that performs an axial movement from the first group (41) toward the second group (42).

[0082] Preferably, when the rotational movement of the mandrel shaft (20) changes and affects the frictional movement of the clutch device (49), the elastic action of the elastic member (45) is overcome by the connecting device (40), and thus the arm group (3) is lowered as a result.

[0083] In other words, the connecting means (43) is suitable for at least partially overcoming the action of the elastic member (45) and for modifying the position of the arm group (3) when the clutch device (49) is in operation. In particular, the connecting means (43) is suitable for at least partially overcoming the action of the elastic member (45) when the clutch device (49) is in operation and for reducing the frictional action between the discs of the clutch device (49) to enable faster rotation of the mandrel shaft (20).

[0084] For example, variations in the rotational speed of the mandrel assembly caused by the variable operation of the web result in alternation of the frictional action of the clutch device, which ultimately results in variations in the angular position of the arm, sometimes in a first direction where the rotational action is dominant over the action of the elastic member, and sometimes in a second direction where the action of the elastic member is dominant over the rotational action.

[0085] According to a preferred embodiment, the connecting means (43) includes a plurality of sliding elements (430) spaced apart from each other at equal angles.

[0086] Preferably, the first surface (410) and / or the second surface (420) include a plurality of inclined surfaces. Preferably, each sliding element (430) operates on each inclined surface.

[0087] According to a preferred embodiment, the sliding element (430) includes a shaft (431) and at least one wheel (432) that rotates about the shaft (431).

[0088] The shaft (431) is preferably extended radially.

[0089] Preferably, a plurality of wheels, for example, three wheels (432), are mounted on the shaft (431).

[0090] According to a preferred embodiment, the connecting means (43) includes a spacer member (435) that is coupled to the first group (41) and the second group (42).

[0091] Preferably, the spacer member (435) can be axially adjusted to adjust the axial distance between the first group (41) and the second group (42).

[0092] Preferably, the spacer member (435) engages with the first group (41) and the second group (42) by specific screw connections. Preferably, the distance between the first group (41) and the second group (42) can be adjusted by operating the screw connections.

[0093] Preferably, the connecting means (43) further includes the sliding element (430), or, if the sliding elements (430) are provided, a support disk (439) suitable for supporting the sliding elements (430).

[0094] According to a preferred embodiment, the first group (41) includes a first disk element (411) including the first surface (410).

[0095] According to a preferred embodiment, the second group (42) includes a second disk element (412) including the second surface (420).

[0096] That is, the above connecting means (43) is interposed between the first disk element (411) and the second disk element (412).

[0097] Preferably, the disk elements extend substantially radially around the rewinding axis (RR).

[0098] Preferably, the disk elements are independent elements or, for example, parts of more complex components including elements having axial extensions along the rewinding axis (RR).

[0099] Preferably, in practice, the first group (41) includes a first hollow shaft (415) extending along the rewinding axis (RR), and the arm group (3) is coupled to the first hollow shaft (415).

[0100] Preferably, in practice, the second group (42) includes a second hollow shaft (425) extending along the rewinding shaft (RR), and the second hollow shaft (425) is coupled to a clutch device (49) at one end.

[0101] Innovatively, the rewinding assembly fully achieves its intended purpose in overcoming the typical problems of the prior art. Advantageously, a system comprising the rewinding assembly also fully achieves its intended purpose in overcoming the typical problems of the prior art.

[0102] Advantageously, in practice, the rewinding assembly is suitable for managing the rotation and rewinding of the processed web in a simple and effective manner.

[0103] Advantageously, the rewinding assembly itself adapts to rotational motion and controls the "demand" for the web by moving the arm group.

[0104] Advantageously, the rewinding assembly performs the pulling of the web as a function of the induced rotational motion driving the rewinding assembly, thus in accordance with the requirement.

[0105] Advantageously, the rewinding assembly performs "controlled" rewinding and does not perform free rewinding. That is, advantageously, the rewinding assembly automatically manages the rewinding of the web by adapting to the operation modes (applied to the web) that the web undergoes.

[0106] Advantageously, the rewinding assembly winds the required amount of web, thereby preventing the possibility of winding more than necessary.

[0107] Advantageously, the rewinding assembly is suitable for performing rewinding operations in a simple and controlled manner at both high and low speeds, and is also suitable for effectively managing any transient state.

[0108] Advantageously, the rewinding assembly avoids situations in which excessive pulling is performed on the web and situations in which insufficient pulling is performed on the web by self-regulating with respect to the rewinding operation.

[0109] Advantageously, the rewinding assembly is suitable for performing a winding operation in a manner that obtains a compact and perfectly structured reel. Advantageously, the rewinding assembly prevents the reel from being wound loosely. Advantageously, the rewinding assembly prevents the web from being wound with a conical effect.

[0110] Advantageously, the movement of the above web is simplified.

[0111] Advantageously, the risk of damage to the web undergoing the above winding operations is minimized.

[0112] Advantageously, many of the typical complexities of known rewinding assemblies and known systems are resolved.

[0113] Advantageously, multiple heat points of the disclosed rewinding assemblies and disclosed systems are resolved.

[0114] Advantageously, the rewinding assembly is easily adjustable and adaptable to different webs.

[0115] Advantageously, the rewinding assembly is particularly advantageous in application forms included in labeling systems and is not only adaptable for use with labels of different sizes but also highly flexible.

[0116] Advantageously, the above rewinding assembly is particularly suitable for performing high-speed web movement.

[0117] Advantageously, the maintenance and / or assembly and / or disassembly operations of the above-mentioned rewinding assembly are extremely simplified.

[0118] Advantageously, the aforementioned situational advantages for the rewinding assembly are equally present within the system. Advantageously, in the labeling system, these advantages are even more pronounced.

[0119] It is evident to those skilled in the art that modifications to the invention described above may be made to meet unspecified needs, and all such modifications fall within the scope of protection defined by the claims set forth below.

Claims

Claim 1 A rewinding assembly (1) for a system (900) that performs operations on a web (500), wherein the system (900): comprises a winding assembly (910) suitable for receiving a reel of the web (500); and a work assembly (920) suitable for performing operations on the web (500); and a pulling assembly (950) suitable for pulling a web (500) to be processed; wherein the rewinding assembly (1): i) a mandrel group (2) suitable for receiving a reel of the processed web (500) and extending with respect to a rewinding axis (RR), comprising a mandrel shaft (20) that is rotatably driven to rewind the web (500); ii) an arm group (3) comprising an arm (30) extending radially with respect to the rewinding axis (RR) and a roller (35) disposed at the end of the arm (30) away from the rewinding axis (RR), wherein the roller (35) extends along a roller axis (XX) substantially parallel to the rewinding axis (RR) and the web (500) is configured to be unwound toward the reel on the roller (35); and iii) a connecting group (4) suitable for connecting the mandrel shaft (20) to the arm (30), suitable for rotating the mandrel shaft (20), and engaging with the arm (30) so that the arm (30) can move in an angular direction as the rotational motion of the mandrel shaft (20) changes, comprising a clutch device (49) suitable for engaging with the mandrel shaft (20) by frictional motion and varying the frictional motion as the rotational speed of the mandrel shaft (20) changes, and a connecting group (4) suitable for varying the angular position of the arm (30) between an initial position and a varied angular position so as to change the path of the web (500) unwound on the roller (35) as the frictional motion changes; comprising a rewinding assembly. Claim 2 In claim 1, the connection group (4) comprises a connection device (40) operably connected to the clutch device (49) and the arm (30), and an elastic member (45) acting on the connection device (40) to perform the operation of placing the arm (30) in a normal starting position, forming a rewinding assembly. Claim 3 In claim 2, the elastic member (45) is a spiral spring (450), forming a rewinding assembly. Claim 4 In claim 2 or 3, the connecting device (40) comprises a first connecting group (41) coupled to the arm (30), a second connecting group (42) coupled to the elastic member (45) and the clutch device (49), and a connecting means (43) suitable for operatively connecting the first connecting group (41) to the second connecting group (42), forming a rewinding assembly. Claim 5 In claim 4, the first group (41) comprises a first surface (410), and the second group (42) comprises a second surface (420) facing the first surface (410) along the rewinding axis (RR), and the first surface (410) and / or the second surface (420) comprises one or more planes inclined by an angle of inclination α, and the connecting means (43) comprises at least one sliding element (430), preferably a plurality of sliding elements (430) arranged at equal angular intervals, and the sliding element (430) slides on the first surface (410) and on the second surface (420) to perform an axial pushing motion from the first group (41) toward the second group (42), so that as a function (result) of the pushing motion, the frictional action of the clutch device (49) changes and overcomes the action (elasticity) of the elastic member (45) A rewinding assembly that changes the angle position of the arm (30). Claim 6 A rewinding assembly according to claim 5, wherein the angle of inclination (α) is the angle of inclination of the plane with respect to the radial direction and / or the circumferential direction. Claim 7 In claim 5 or 6, the sliding element (430) comprises a shaft (431) and at least one wheel (432) that rotates about the shaft (431), forming a rewinding assembly. Claim 8 In any one of claims 5 to 7, the connecting means (43) comprises a spacer member (435) coupled to a first group (41) and a second group (42), and the spacer member (435) is axially adjustable to adjust the axial distance between the first group (41) and the second group (42), forming a rewinding assembly. Claim 9 A rewinding assembly according to any one of claims 4 to 8, wherein the first group (41) comprises a first disk element (411) having the first surface (410), and the second group (42) comprises a second disk element (412) having the second surface (420). Claim 10 In any one of the preceding claims, the connection group (4) is suitable for maintaining the arm (30) in an initial position corresponding to the rising position of the roller (35), and the frictional action of the clutch device (49) moves the roller (35) angularly, thereby reducing the strength of the frictional action of the clutch device (49) as the roller (35) descends. Claim 11 In any one of the preceding claims, the clutch device (49) comprises a plurality of clutch discs (490, 491, 492) arranged concentrically on a rewinding shaft (RR), and the clutch discs (492) are integrally connected to the mandrel shaft (20), forming a rewinding assembly. Claim 12 In any one of the prior claims, the connection group (4) comprises a pulley (48) on which a driving member works, preferably a belt or chain or toothed band, which transmits a rotational motion that drives the rotation of the mandrel shaft (20). Claim 13 A system (900) for performing operations on a web (500), comprising a winding assembly (910) suitable for receiving a reel of the web (500), a work assembly (920) suitable for performing operations on the web (500), a pulling assembly (950) suitable for pulling the web (500), and a rewinding assembly (1) suitable for rewinding the web (500) according to any one of the prior claims, wherein the rewinding assembly (1) is operationally connected to the pulling assembly (950), so that the pulling assembly (950) drives the rotation of the rewinding assembly (1) in addition to performing the operation of pulling the web (500). Claim 14 A system (900) according to claim 13 combined with claim 12, comprising a driving member extending from the pulling assembly (950) to the pulley (48) received within the rewinding assembly (1), wherein the driving member is preferably a belt or a chain or a toothed band. Claim 15 A system according to claim 13 or 14, wherein the work assembly (920) performs a labeling operation, the reel received in the reeling assembly (910) comprises a web (500) to be processed having a label, and the reel on the re-winding assembly (1) comprises a processed web (500) from which the label has been removed.

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