EP2519445A1 - Device for manufacturing a shrink sleeve label - Google Patents

Device for manufacturing a shrink sleeve label

Info

Publication number
EP2519445A1
EP2519445A1 EP20100814748 EP10814748A EP2519445A1 EP 2519445 A1 EP2519445 A1 EP 2519445A1 EP 20100814748 EP20100814748 EP 20100814748 EP 10814748 A EP10814748 A EP 10814748A EP 2519445 A1 EP2519445 A1 EP 2519445A1
Authority
EP
European Patent Office
Prior art keywords
forming spindle
heat
band
perforation
shrink film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20100814748
Other languages
German (de)
French (fr)
Other versions
EP2519445B1 (en
Inventor
Daniele Marastoni
Andrea Farina
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sacmi Verona SpA
Original Assignee
Sacmi Verona SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sacmi Verona SpA filed Critical Sacmi Verona SpA
Publication of EP2519445A1 publication Critical patent/EP2519445A1/en
Application granted granted Critical
Publication of EP2519445B1 publication Critical patent/EP2519445B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C3/00—Labelling other than flat surfaces
    • B65C3/06—Affixing labels to short rigid containers
    • B65C3/065—Affixing labels to short rigid containers by placing tubular labels around the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/0015—Preparing the labels or articles, e.g. smoothing, removing air bubbles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/0015—Preparing the labels or articles, e.g. smoothing, removing air bubbles
    • B65C2009/0018—Preparing the labels

Definitions

  • the present invention relates to a device for manufacturing a shrink sleeve label.
  • sleeve-like labels also known as "shrink sleeveā€ labels, made of polymeric heat-shrink material.
  • sleeve-like labels are fitted over the containers, which are subsequently sent to a heating station to bring about the shrinkage of the sleeve-like labels on the outside surface of the container, so as to subsequently take on its shape.
  • apparatuses of this type are constituted by a carousel, which is rotatable about a substantially vertical axis of rotation and which has, along its peripheral region, a plurality of support pans for respective containers to be labeled which are supplied by a belt feeder and which are then sent, after a partial rotation of the carousel about its axis, to the heating station by means of a special conveyor.
  • a station for feeding the sleeve-like labels which is separate from the carousel and provided with a supporting roller for a roll of a flat tubular element made from a printed film of heat-shrink material. Downstream of the supporting roller, there are means for cropping the tubular element which produce, sequentially, the sleeve-like labels to be applied on the containers positioned on the carousel.
  • the sleeve-like labels are produced directly on the carousel by winding portions of a film around a spindle, which is positioned above a respective pan of the carousel.
  • the portions of printed film that are wrapped by the spindles are obtained by taking a continuous film from a reel and cutting it to measure by cutting means that are associated with reading means adapted to detect, along the length of the continuous film, suitable graphic signs or "markers" which identify the areas of the continuous film at which to make the cut.
  • the heat-sealing device is associated with each spindle and rotates together with such spindle.
  • First types of apparatuses for providing easy-break portions are known, which are combined with labeling devices wherein the sleeve-like labels are unwound from a roll of a flat tubular element made from a film of heat-shrink material.
  • these apparatuses are typically made from perforation rollers which have an axis of rotation substantially perpendicular to the direction of unwinding of the flat tubular element from the respective reel so as to produce respective easy-break portions that are substantially parallel to the unwinding axis of the tubular element and, consequently, parallel to the axis of the sleeve-like label.
  • apparatuses which can be associated with labeling devices that use forming spindles in which the easy-break portions are obtained using similar means.
  • the perforation rollers engage the heat-shrink film before it is cut and transferred to the respective forming spindle, or when the portion has been cut but not yet transferred to the spindle and, as a consequence of this, the easy-break portions thus obtained run transversely to the axis of the sleeve-like label.
  • the aim of the present invention is to solve the above-mentioned problem, by providing a device for manufacturing a sleeve-like label which is extremely reliable in operation.
  • an object of the invention is to provide a device for manufacturing a sleeve-like label which is capable of offering wide-ranging guarantees of safety in use.
  • Another object of the present invention is to provide a device for manufacturing a sleeve-like label which is simple in terms of construction, so that it is advantageous also from a purely economic viewpoint.
  • Figure 1 is a schematic side view of a device for manufacturing sleeve-like labels
  • Figure 2 is a front view of the device for manufacturing sleeve-like labels shown in Figure 1 ;
  • Figure 3 is a schematic sectional view of the device for manufacturing labels, taken along the line III-III of Figure 1 ;
  • Figure 4 is an enlarged scale view of the region of contact between the perforation device and the band of film wrapped around the forming spindle;
  • Figure 5 is a perspective view of a possible embodiment of the perforation device
  • Figures 6 to 8 show, in sequence, and in sectional views taken along a plane perpendicular to the axis of rotation of the forming spindle, the relative motion steps between the forming spindle around which the band of film is wrapped upon which to provide the easy-break portion and the perforation device;
  • Figure 9 is a schematic plan view of a device according to the invention.
  • Figure 10 is a cross-section, enlarged scale view of a forming spindle around which a band of film is wrapped.
  • a device for manufacturing a sleeve-like label 2, comprises at least one supply reel 3 which is designed to feed to at least one forming spindle 4 a band of heat-shrink film 5.
  • the device 1 has, moreover, means 11 for heat-sealing the first longitudinal end 5 a to the second longitudinal end 5 b of the band of heat- shrink film 5 which is wrapped around the forming spindle 4 in order to provide a connecting portion at the overlap region 8.
  • the device 1 comprises means 9 for transferring the sleeve-like label 2 from the, or from each, forming spindle 4 to a container 10 to be labeled.
  • the device 1 comprises, upstream of the transfer means 9, a perforation device 20 designed to make contact with the band of heat-shrink film 5 wrapped around the respective forming spindle 4 so as to provide at least one easy-break portion 21 that runs substantially parallel to the axis 101 of the forming spindle 4 and, consequently, of the sleeve-like label 2 wrapped around it.
  • the device 1 has means 22 for relative movement between the, or between each, forming spindle 4 and the perforation device 20, these means 22 being adapted to provide, during contact between the perforation device 20 and the band of heat-shrink film 5 wrapped around the forming spindle 4, a rolling motion without sliding of the forming spindle 4, and, consequently, of the band of film 5 wrapped around it, on the perforation device 20 (as clearly shown in the sequence represented in Figures 6 to 8).
  • the device 1 comprises a supporting frame 30 for a carousel 31 which can rotate about an axis of rotation 100 and is designed to support, peripherally, the forming spindle 4, which is, in particular, arranged with its axis 101 substantially parallel to the axis of rotation 100 of the carousel 31.
  • the relative movement means 22 comprise a device for the rotary actuation 22a of the forming spindle 4 about its axis 101 so as to eliminate, during the step of contact between the perforation device 20 and the band of heat-shrink film 5 wrapped around the respective forming spindle 4, the effect of rotation of the forming spindle 4 about the carousel 31 and, therefore, along the curved path 200 indicated in the figures with a dotted line.
  • the carousel 31 supports, peripherally, a plurality of forming spindles 4.
  • the device 1 provides, as previously mentioned, the use of the carousel 31 , which can rotate about its substantially vertical axis of rotation 100 and is designed to support the containers 10 to be labeled, during the process of applying the sleeve-like labels 5.
  • the carousel 31 is subjected to rotation, with respect to the supporting frame 30, about its axis of rotation 100, in a direction of rotation indicated in the figures with the letter A.
  • the carousel 31 has a plurality of applicator elements constituted, as previously mentioned, by respective forming spindles 4, which are designed to transfer a respective sleeve-like label 2 formed thereon onto the outer surface 10a of at least one container 10 to be labeled, which is also supported by the carousel 31.
  • the containers 10 to be labeled are fed to the carousel
  • the belt feeder and the carousel 31 there is an entry feed wheel 8, the function of which is to convey the containers 10 to be labeled to the carousel 31.
  • an exit feed wheel the function of which is to remove the labeled containers 10 from the carousel 31 and transfer them to the conveyor.
  • feeder means are provided, which will be described in detail below and are adapted to make the bands of heat- shrink film 5 available to the respective forming spindles 4.
  • the perforation device 20 comprises a first group 20a of perforation bodies 23, which are mutually spaced along a direction 102a that is substantially parallel to the axis 101 of the forming spindle 4.
  • the perforation device comprises at least one second group 20b of perforation bodies 23 which lies in a direction 102b parallel to the direction 102a along which the first group 20a of perforation bodies 23 lies.
  • the perforation device 20 is integral with the supporting frame 30.
  • the perforation device 20 can be supported, advantageously so that it can be removed, by an upright member 33 which in turn is associated, as shown in Figures 1 and 2, with the supporting frame 30.
  • the supporting frame 30 and the perforation device 20 there are means for adjusting the relative position of the perforation device 20, and more specifically of the group or groups of perforation bodies 23, with respect to the supporting frame 30, and, therefore, with respect to the curved path 200 followed by the axes 101 of the forming spindles 4 about the axis of rotation of the carousel 31.
  • adjusting means can be implemented by one or more collars 34 for locking the perforation device 20 along the extension of the upright member 33 and, optionally, by a linear adjustment rail, which is perpendicular to the axis 101 of the forming spindles and, advantageously, passes through the axis of rotation 100 of the carousel 31.
  • the linear adjustment rail is, in particular, defined on a supporting block 35 and can be engaged, conveniently, by a sliding element 36 which supports the group or groups of perforation bodies 23.
  • the locking in position of the sliding element 36 with respect to the supporting block 35 can be performed by means of a tightening handle 37.
  • interface means could not be interposed between the perforation device 20 and the supporting frame 30, such as for example pneumatic bearings which are designed to allow a controlled shift of the perforation device 20 with respect to the supporting frame 30 in the event of unexpected contact with the forming spindle 4.
  • the forming spindle 4 comprises at least one longitudinal groove 4b which extends in the region designed to face the portion of the band of film 5, or of the sleeve-like label 2, if already formed, which is designed to make contact with the perforation device 20 so as to provide the respective easy-break portions 21.
  • the presence of the longitudinal groove or grooves 4b enables the perforation device 20 to penetrate the thickness of the bands of heat-shrink film 5 or of the sleeve-like labels 2 with extremely high precision and great ease.
  • the perforation device 20 is positioned downstream of the heat-sealing means 1 1. In this way, the pressure of the perforation bodies 23 does not cause a sliding of the band of film 5 on the forming spindle 4.
  • the means of feeding the bands of heat-shrink film 5 to the forming spindles 4 comprise cutting means 14, which are designed to cut the film 13 unwound from the reel 3, so as to make the bands of film 5, which are subsequently used to form the sleeve-like labels 2.
  • a transfer drum 18 can be provided which is rotatable about a respective axis of movement 102 according to a direction of rotation, indicated by the letter C, that is opposite to the direction of rotation A of the carousel 2.
  • the transfer drum 18 has, in a manner that is in and of itself known, a cylindrical side wall on which a plurality of holes are formed that are connected to a pneumatic device adapted to aspirate air into the transfer drum 18 or to expel air from the transfer drum 18, through such holes, as a function of the angular position assumed by such holes, during the rotation of the transfer drum 18, with respect to the axis of movement 102.
  • the heat-sealing means 1 1 can be of the ultrasound type, as described in patent application no. WO2004/020291 , or of the laser type, as described in patent application no. WO2007/031502.
  • the spindles 4 are actuated so as to rotate about their corresponding axis 101 to wrap the portions of film 5 taken from the transfer drum 18 around their outside surface 4a.
  • the forming spindles 4 have, in a manner that is in and of itself known, means 9 of sending the sleeve-like labels 2 to the containers 10.
  • the sending means 9 can for example be constituted by a thrust ring that is designed to be coaxially moved towards a respective forming spindle 4 in order to push the sleeve-like label 2 that is wrapped around it towards the container 10 to be labeled which is positioned below the forming spindle 4.
  • a method for labeling containers with sleeve-like labels which involves, essentially, a step of feeding at least one band of heat- shrink film 5 to a forming spindle 4, possibly situated in the peripheral region of the carousel 31 , and a step of transferring the sleeve-like label 2 formed around the forming spindle 4 onto a container 10 supported by the device 1 and, in the specific case, by the carousel 31.
  • the distinctive characteristic of such method consists in the fact that it involves a step of perforation of at least one portion of the sleeve-like label 2, or of the band of heat-shrink film 5 wrapped around the forming spindle 4, before the aforementioned step of transferring it to the container to be labeled 10.
  • this perforation step makes it possible to provide at least one easy-break portion 21 which extends parallel to the axis 101 of the respective forming spindle 4.
  • the aforementioned perforation step involves a step of relative movement between the forming spindle 4 and a perforation device 20 so as to provide, during contact between the perforation device 20 and the band of heat- shrink film 5 wrapped around the forming spindle 4, a rolling motion without sliding of the forming spindle 4 on the perforation device 20.
  • the forming spindle 4 is arranged, with its axis 101, substantially parallel to the axis of rotation 100 of the carousel 31.
  • the relative motion step is performed by means of the rotary actuation of the forming spindle 4 about its own axis 101 so as to eliminate, during the phase of contact between the perforation device 20 and the band of heat-shrink film 5 wrapped around the respective forming spindle 4, the effect of rotation of the forming spindle 4 around the carousel 31.
  • the method according to the invention can, furthermore, execute the following operations: a step of unwinding a film 13 from a reel 12; a step of cutting the film 13 to sequentially obtain the bands of heat-shrink film 5 designed to provide the sleeve-like labels 2; a step of wrapping each one of the bands of film 5 around a respective forming spindle 4 which is supported by the peripheral region of the carousel 31 so that it can rotate about its own axis 101 ; a step of heat-sealing the longitudinal edges 5 a and 5b of the band of heat-shrink film 5 in order to provide the sleeve-like label 2; lastly, a step of transferring the formed sleeve-like label 2 to the outer surface 10a of a container to be labeled 10.
  • the perforation step is executed between the step of wrapping the band of heat-shrink film 5 around the respective forming spindle 4 and the step of transferring the formed sleeve-like label 2 to the container to be labeled 10.
  • the perforation step is carried out after the sealing step.
  • the device 1 makes it possible to provide, on sleeve-like labels 2 formed on a forming spindle 4, easy-break portions 21 which extend parallel to the axis 101 of the forming spindle and, therefore, to the longitudinal axis of the sleeve-like label 2 formed.

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  • Labeling Devices (AREA)
  • Making Paper Articles (AREA)

Abstract

A device (1) for manufacturing a sleeve-like label (2), comprising at least one supply reel (3) designed to feed to at least one forming spindle (4) a band of heat-shrink film (5) and means for wrapping the band of heat- shrink film (5) around the lateral surface (4a) of the forming spindle (4) which are designed to provide a region of overlap (8) between a first longitudinal end (5a) of the band of heat-shrink film (5) in contact with the forming spindle (4) and the second longitudinal end (5 b) of the band of heat-shrink film (5), means (11) being provided for heat-sealing the first longitudinal end (5a) to the second longitudinal end (5b) of the band of heat-shrink film (5) wrapped around the forming spindle (4) so as to provide a connecting portion (13) at the overlap region (8), and means (9) being provided for transferring the sleeve-like label (2) from the forming spindle (4) to a container to be labeled (10); the device comprises, upstream of the transfer means (9), a perforation device (20) designed to make contact with the band of heat-shrink film (5) wrapped around the forming spindle (4) so as to provide at least one easy-break portion (21) which extends substantially parallel to the axis (101) of the forming spindle (4), means (22) being provided for relative movement between the forming spindle (4) and the perforation device (20) which are adapted to provide, during contact between the perforation device (20) and the band of heat-shrink film (5) wrapped around the forming spindle (4), a rolling motion without sliding of the forming spindle (4) on the perforation device (20).

Description

DEVICE FOR MANUFACTURING A SHRINK SLEEVE LABEL
Technical Field
The present invention relates to a device for manufacturing a shrink sleeve label.
Background Art
Nowadays apparatuses are widely known for carrying out the continuous labeling of containers, such as bottles or the like, which allow the containers to be labeled with sleeve-like labels, also known as "shrink sleeve" labels, made of polymeric heat-shrink material.
Specifically, sleeve-like labels are fitted over the containers, which are subsequently sent to a heating station to bring about the shrinkage of the sleeve-like labels on the outside surface of the container, so as to subsequently take on its shape.
In general, apparatuses of this type are constituted by a carousel, which is rotatable about a substantially vertical axis of rotation and which has, along its peripheral region, a plurality of support pans for respective containers to be labeled which are supplied by a belt feeder and which are then sent, after a partial rotation of the carousel about its axis, to the heating station by means of a special conveyor.
In a first type of known apparatus of this sort, there is a station for feeding the sleeve-like labels, which is separate from the carousel and provided with a supporting roller for a roll of a flat tubular element made from a printed film of heat-shrink material. Downstream of the supporting roller, there are means for cropping the tubular element which produce, sequentially, the sleeve-like labels to be applied on the containers positioned on the carousel.
In another type of known apparatus, the sleeve-like labels are produced directly on the carousel by winding portions of a film around a spindle, which is positioned above a respective pan of the carousel. The portions of printed film that are wrapped by the spindles are obtained by taking a continuous film from a reel and cutting it to measure by cutting means that are associated with reading means adapted to detect, along the length of the continuous film, suitable graphic signs or "markers" which identify the areas of the continuous film at which to make the cut.
Once the winding of the portions of film onto the respective spindle is completed, such spindle is brought, pulled by the rotation of the carousel about its axis, to a heat-sealing device which "welds" the two opposite flaps of the portions of film together, in such a way as to produce the sleeve-like label, which is then, finally, fitted over the container to be labeled.
In some cases, the heat-sealing device is associated with each spindle and rotates together with such spindle.
In some cases it is useful to provide, on the sleeve-like label, easy- break portions in order to allow the user to easily remove the label from the container, so as to be able to separately dispose of the container and the label removed therefrom, in differentiated waste collection.
First types of apparatuses for providing easy-break portions are known, which are combined with labeling devices wherein the sleeve-like labels are unwound from a roll of a flat tubular element made from a film of heat-shrink material.
In this case, these apparatuses are typically made from perforation rollers which have an axis of rotation substantially perpendicular to the direction of unwinding of the flat tubular element from the respective reel so as to produce respective easy-break portions that are substantially parallel to the unwinding axis of the tubular element and, consequently, parallel to the axis of the sleeve-like label.
Alternatively, apparatuses are known which can be associated with labeling devices that use forming spindles in which the easy-break portions are obtained using similar means.
In this case however, the perforation rollers engage the heat-shrink film before it is cut and transferred to the respective forming spindle, or when the portion has been cut but not yet transferred to the spindle and, as a consequence of this, the easy-break portions thus obtained run transversely to the axis of the sleeve-like label.
As of today no apparatuses are known which make it possible to provide easy-break portions that are substantially parallel to the axis of the sleeve-like label to be associated with labeling devices that use forming spindles.
Disclosure of the invention
The aim of the present invention is to solve the above-mentioned problem, by providing a device for manufacturing a sleeve-like label which is extremely reliable in operation.
Within this aim, an object of the invention is to provide a device for manufacturing a sleeve-like label which is capable of offering wide-ranging guarantees of safety in use.
Another object of the present invention is to provide a device for manufacturing a sleeve-like label which is simple in terms of construction, so that it is advantageous also from a purely economic viewpoint.
This aim, as well as these and other objects which will become more evident hereinafter, are achieved by a device for manufacturing a sleeve-like label as well as the associated method for manufacturing a sleeve-like label as identified in the subsequent independent claims.
Brief description of the drawings
Further characteristics and advantages of the invention will become more apparent from the detailed description that follows of a preferred, but not exclusive, embodiment of the device according to the invention, illustrated by way of non-limiting example in the accompanying drawings, wherein:
Figure 1 is a schematic side view of a device for manufacturing sleeve-like labels;
Figure 2 is a front view of the device for manufacturing sleeve-like labels shown in Figure 1 ;
Figure 3 is a schematic sectional view of the device for manufacturing labels, taken along the line III-III of Figure 1 ;
Figure 4 is an enlarged scale view of the region of contact between the perforation device and the band of film wrapped around the forming spindle;
Figure 5 is a perspective view of a possible embodiment of the perforation device;
Figures 6 to 8 show, in sequence, and in sectional views taken along a plane perpendicular to the axis of rotation of the forming spindle, the relative motion steps between the forming spindle around which the band of film is wrapped upon which to provide the easy-break portion and the perforation device;
Figure 9 is a schematic plan view of a device according to the invention;
Figure 10 is a cross-section, enlarged scale view of a forming spindle around which a band of film is wrapped.
Ways of carrying out the invention
With reference to the figures, a device, generally indicated with the reference numeral 1 , for manufacturing a sleeve-like label 2, comprises at least one supply reel 3 which is designed to feed to at least one forming spindle 4 a band of heat-shrink film 5.
In particular, there are means of wrapping the band of heat-shrink film 5 around the lateral surface 4a of the, or of each, respective forming spindle 4, which are designed to provide a region of overlap 8 between a first longitudinal end 5a of the band of heat-shrink film 5 in contact with the forming spindle 4 and the second longitudinal end 5 b of the band of heat- shrink film 5.
The device 1 has, moreover, means 11 for heat-sealing the first longitudinal end 5 a to the second longitudinal end 5 b of the band of heat- shrink film 5 which is wrapped around the forming spindle 4 in order to provide a connecting portion at the overlap region 8.
The device 1 comprises means 9 for transferring the sleeve-like label 2 from the, or from each, forming spindle 4 to a container 10 to be labeled.
According to the present invention, the device 1 comprises, upstream of the transfer means 9, a perforation device 20 designed to make contact with the band of heat-shrink film 5 wrapped around the respective forming spindle 4 so as to provide at least one easy-break portion 21 that runs substantially parallel to the axis 101 of the forming spindle 4 and, consequently, of the sleeve-like label 2 wrapped around it.
In particular, the device 1 has means 22 for relative movement between the, or between each, forming spindle 4 and the perforation device 20, these means 22 being adapted to provide, during contact between the perforation device 20 and the band of heat-shrink film 5 wrapped around the forming spindle 4, a rolling motion without sliding of the forming spindle 4, and, consequently, of the band of film 5 wrapped around it, on the perforation device 20 (as clearly shown in the sequence represented in Figures 6 to 8).
According to a preferred embodiment, the device 1 comprises a supporting frame 30 for a carousel 31 which can rotate about an axis of rotation 100 and is designed to support, peripherally, the forming spindle 4, which is, in particular, arranged with its axis 101 substantially parallel to the axis of rotation 100 of the carousel 31.
In this case, with specific reference to the time sequence shown in Figures 6 to 8, the relative movement means 22 comprise a device for the rotary actuation 22a of the forming spindle 4 about its axis 101 so as to eliminate, during the step of contact between the perforation device 20 and the band of heat-shrink film 5 wrapped around the respective forming spindle 4, the effect of rotation of the forming spindle 4 about the carousel 31 and, therefore, along the curved path 200 indicated in the figures with a dotted line.
Advantageously, the carousel 31 supports, peripherally, a plurality of forming spindles 4.
With specific reference to the accompanying figures, in the present description the device 1 provides, as previously mentioned, the use of the carousel 31 , which can rotate about its substantially vertical axis of rotation 100 and is designed to support the containers 10 to be labeled, during the process of applying the sleeve-like labels 5.
However, there is no reason why the subject matter of the present invention could not be applied on a different structure such as, for example, linear labeling apparatuses.
More precisely, the carousel 31 is subjected to rotation, with respect to the supporting frame 30, about its axis of rotation 100, in a direction of rotation indicated in the figures with the letter A.
Along its peripheral region, the carousel 31 has a plurality of applicator elements constituted, as previously mentioned, by respective forming spindles 4, which are designed to transfer a respective sleeve-like label 2 formed thereon onto the outer surface 10a of at least one container 10 to be labeled, which is also supported by the carousel 31.
Conveniently, the containers 10 to be labeled are fed to the carousel
31 by a belt feeder, while a conveyor takes the labeled containers 10 from the carousel 31 to bring them to a heating station (not shown in the figures), so as to achieve the heat-shrinking of the sleeve-like labels 2 which thus take on the outside shape of the container 10 over which they are fitted.
Advantageously, between the belt feeder and the carousel 31 there is an entry feed wheel 8, the function of which is to convey the containers 10 to be labeled to the carousel 31. Similarly, between the carousel 31 and the conveyor there is an exit feed wheel, the function of which is to remove the labeled containers 10 from the carousel 31 and transfer them to the conveyor. Furthermore, on the device 1 feeder means are provided, which will be described in detail below and are adapted to make the bands of heat- shrink film 5 available to the respective forming spindles 4.
According to a preferred embodiment, the perforation device 20 comprises a first group 20a of perforation bodies 23, which are mutually spaced along a direction 102a that is substantially parallel to the axis 101 of the forming spindle 4.
Conveniently, the perforation device comprises at least one second group 20b of perforation bodies 23 which lies in a direction 102b parallel to the direction 102a along which the first group 20a of perforation bodies 23 lies.
In this way it is possible to obtain, on the sleeve-like label 2, two easy-break portions 21 which are arranged mutually spaced and parallel to the axis 101 of the forming spindle.
According to a preferred embodiment, the perforation device 20 is integral with the supporting frame 30.
In this regard, the perforation device 20 can be supported, advantageously so that it can be removed, by an upright member 33 which in turn is associated, as shown in Figures 1 and 2, with the supporting frame 30.
Conveniently, between the supporting frame 30 and the perforation device 20 there are means for adjusting the relative position of the perforation device 20, and more specifically of the group or groups of perforation bodies 23, with respect to the supporting frame 30, and, therefore, with respect to the curved path 200 followed by the axes 101 of the forming spindles 4 about the axis of rotation of the carousel 31.
These adjusting means can be implemented by one or more collars 34 for locking the perforation device 20 along the extension of the upright member 33 and, optionally, by a linear adjustment rail, which is perpendicular to the axis 101 of the forming spindles and, advantageously, passes through the axis of rotation 100 of the carousel 31.
The linear adjustment rail is, in particular, defined on a supporting block 35 and can be engaged, conveniently, by a sliding element 36 which supports the group or groups of perforation bodies 23.
The locking in position of the sliding element 36 with respect to the supporting block 35 can be performed by means of a tightening handle 37.
There is no reason why interface means could not be interposed between the perforation device 20 and the supporting frame 30, such as for example pneumatic bearings which are designed to allow a controlled shift of the perforation device 20 with respect to the supporting frame 30 in the event of unexpected contact with the forming spindle 4.
According to a particularly important aspect of the invention, the forming spindle 4 comprises at least one longitudinal groove 4b which extends in the region designed to face the portion of the band of film 5, or of the sleeve-like label 2, if already formed, which is designed to make contact with the perforation device 20 so as to provide the respective easy-break portions 21.
The presence of the longitudinal groove or grooves 4b enables the perforation device 20 to penetrate the thickness of the bands of heat-shrink film 5 or of the sleeve-like labels 2 with extremely high precision and great ease.
Advantageously, the perforation device 20 is positioned downstream of the heat-sealing means 1 1. In this way, the pressure of the perforation bodies 23 does not cause a sliding of the band of film 5 on the forming spindle 4.
With reference to the scheme shown in Figure 9, the means of feeding the bands of heat-shrink film 5 to the forming spindles 4 comprise cutting means 14, which are designed to cut the film 13 unwound from the reel 3, so as to make the bands of film 5, which are subsequently used to form the sleeve-like labels 2. As shown in Figure 9, a transfer drum 18 can be provided which is rotatable about a respective axis of movement 102 according to a direction of rotation, indicated by the letter C, that is opposite to the direction of rotation A of the carousel 2.
According to a practical embodiment, the transfer drum 18 has, in a manner that is in and of itself known, a cylindrical side wall on which a plurality of holes are formed that are connected to a pneumatic device adapted to aspirate air into the transfer drum 18 or to expel air from the transfer drum 18, through such holes, as a function of the angular position assumed by such holes, during the rotation of the transfer drum 18, with respect to the axis of movement 102.
In practice, by means of the aspiration of air through the holes it is possible to keep the portions of film 15, obtained one at a time with the cutting means 14, in adherence to the cylindrical side wall of the transfer drum 18 and, by means of the expulsion of air from the transfer drum 18, it is possible to detach the portions of film 15 from the cylindrical side wall of the transfer drum 18 in order to allow them to be brought onto the forming spindles 4, which are located downstream of the transfer drum 18 and arranged along the peripheral region of the carousel 31, above the containers 10 to be labeled.
As previously explained, for completing the fabrication of the sleevelike labels 2, there are means 1 1 for heat-sealing which carry out the bonding of the opposite flaps 5a, 5b of the portions of film 5 which are wrapped by the forming spindles 4 of the carousel 31.
For the purposes of example, the heat-sealing means 1 1 can be of the ultrasound type, as described in patent application no. WO2004/020291 , or of the laser type, as described in patent application no. WO2007/031502.
The spindles 4 are actuated so as to rotate about their corresponding axis 101 to wrap the portions of film 5 taken from the transfer drum 18 around their outside surface 4a. In order to ensure an optimal adherence of the portions of film 5 to the lateral surface 4a of the forming spindles 4, there are means of aspiration of air through a plurality of openings defined on the outer surface of the forming spindles 4.
For completeness of description, it should be noted that the forming spindles 4 have, in a manner that is in and of itself known, means 9 of sending the sleeve-like labels 2 to the containers 10.
The sending means 9 can for example be constituted by a thrust ring that is designed to be coaxially moved towards a respective forming spindle 4 in order to push the sleeve-like label 2 that is wrapped around it towards the container 10 to be labeled which is positioned below the forming spindle 4.
To facilitate this operation, it is advisable to interrupt the action of the aspiration means operating on the forming spindle 4 and to activate means of expulsion of air from its openings located on its outer surface, so as to obtain a detachment of the sleeve-like label 2 from the outer surface 4a of the forming spindle 4 over which it is fitted.
In practice, by means of the device 1 according to the invention it is possible to perform a method for labeling containers with sleeve-like labels, which involves, essentially, a step of feeding at least one band of heat- shrink film 5 to a forming spindle 4, possibly situated in the peripheral region of the carousel 31 , and a step of transferring the sleeve-like label 2 formed around the forming spindle 4 onto a container 10 supported by the device 1 and, in the specific case, by the carousel 31.
The distinctive characteristic of such method consists in the fact that it involves a step of perforation of at least one portion of the sleeve-like label 2, or of the band of heat-shrink film 5 wrapped around the forming spindle 4, before the aforementioned step of transferring it to the container to be labeled 10.
In particular, this perforation step makes it possible to provide at least one easy-break portion 21 which extends parallel to the axis 101 of the respective forming spindle 4.
According to a preferred embodiment of the method, the aforementioned perforation step involves a step of relative movement between the forming spindle 4 and a perforation device 20 so as to provide, during contact between the perforation device 20 and the band of heat- shrink film 5 wrapped around the forming spindle 4, a rolling motion without sliding of the forming spindle 4 on the perforation device 20.
In particular, the forming spindle 4 is arranged, with its axis 101, substantially parallel to the axis of rotation 100 of the carousel 31.
The relative motion step is performed by means of the rotary actuation of the forming spindle 4 about its own axis 101 so as to eliminate, during the phase of contact between the perforation device 20 and the band of heat-shrink film 5 wrapped around the respective forming spindle 4, the effect of rotation of the forming spindle 4 around the carousel 31.
The method according to the invention can, furthermore, execute the following operations: a step of unwinding a film 13 from a reel 12; a step of cutting the film 13 to sequentially obtain the bands of heat-shrink film 5 designed to provide the sleeve-like labels 2; a step of wrapping each one of the bands of film 5 around a respective forming spindle 4 which is supported by the peripheral region of the carousel 31 so that it can rotate about its own axis 101 ; a step of heat-sealing the longitudinal edges 5 a and 5b of the band of heat-shrink film 5 in order to provide the sleeve-like label 2; lastly, a step of transferring the formed sleeve-like label 2 to the outer surface 10a of a container to be labeled 10.
In particular, the perforation step is executed between the step of wrapping the band of heat-shrink film 5 around the respective forming spindle 4 and the step of transferring the formed sleeve-like label 2 to the container to be labeled 10.
Advantageously, the perforation step is carried out after the sealing step.
In practice it has been found that in all the embodiments the invention is capable of fully achieving the set aim and objects.
In particular, the device 1 makes it possible to provide, on sleeve-like labels 2 formed on a forming spindle 4, easy-break portions 21 which extend parallel to the axis 101 of the forming spindle and, therefore, to the longitudinal axis of the sleeve-like label 2 formed.
All the characteristics of the invention, indicated above as advantageous, advisable or similar, may also be missing or be substituted by equivalent characteristics.
The individual characteristics set out with reference to general teachings or to specific embodiments may all be present in other embodiments or may substitute characteristics in such embodiments.
The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.
In practice the materials employed, provided they are compatible with the specific use, as well as the dimensions and the shapes, may be any according to requirements.
Moreover, all the details may be substituted by other, technically equivalent elements.
The disclosures in Italian Patent Application No. VR2009A000230 from which this application claims priority are incorporated herein by reference.
Where the technical features mentioned in any claim are followed by reference numerals and/or signs, those reference numerals and/or signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly, such reference numerals and/or signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference numerals and/or signs.

Claims

1. A device (1) for manufacturing a sleeve-like label (2), comprising at least one supply reel (3) designed to feed to at least one forming spindle (4) a band of heat-shrink film (5) and means for wrapping said band of heat- shrink film (5) around the lateral surface (4a) of said forming spindle (4) which are adapted to provide a region of overlap (8) between a first longitudinal end (5 a) of said band of heat-shrink film (5) in contact with said forming spindle (4) and the second longitudinal end (5b) of said band of heat-shrink film (5), means (1 1) being provided for heat-sealing said first longitudinal end (5a) to said second longitudinal end (5b) of said band of heat-shrink film (5) wrapped around said forming spindle (4) to provide a connecting portion (13) at said overlap region (8), and means (9) for transferring said sleeve-like label (2) from said forming spindle (4) to a container to be labeled (10), characterized in that it comprises, upstream of said transfer means (9), a perforation device (20) designed to make contact with the band of heat-shrink film (5) wrapped around said forming spindle (4) so as to provide at least one easy-break portion (21) which extends substantially parallel to the axis (101) of said forming spindle (4), means (22) being provided for relative movement between said forming spindle (4) and said perforation device (20) which are adapted to provide, during contact between said perforation device (20) and the band of heat-shrink film (5) wrapped around said forming spindle (4), a rolling motion without sliding of the forming spindle (4) on the perforation device (20).
2. The device (1) according to claim 1, characterized in that it comprises a supporting frame (30) for a carousel (31) which can rotate about a rotation axis (100) and is designed to support peripherally said at least one forming spindle (4), which is arranged so that its own axis (101) is substantially parallel to said rotation axis (100) of the carousel (31), said relative movement means (22) comprising a device for the rotary actuation (22a) of said forming spindle (4) about its own axis (101) to eliminate, during the phase of contact between said perforation device (20) and said band of heat-shrink film (5) wrapped around the respective forming spindle (4), the effect of the rotation of said forming spindle (4) around said carousel (31).
3. The device (1) according to one or more of the preceding claims, characterized in that said carousel (31) supports peripherally a plurality of said forming spindles (4).
4. The device (1) according to one or more of the preceding claims, characterized in that said perforation device (20) comprises a first group (20a) of perforation bodies (23), which are mutually spaced along a direction (102a) which is substantially parallel to the axis (101) of said at least one forming spindle (4).
5. The device (1) according to one or more of the preceding claims, characterized in that said perforation device (20) comprises at least one second group (20b) of perforation bodies (23), which lies parallel to said first group (20a) of perforation bodies (23).
6. The device (1) according to one or more of the preceding claims, characterized in that said perforation device (20) is jointly connected to said supporting frame (30).
7. The device (1) according to one or more of the preceding claims, characterized in that said forming spindle (4) comprises at least one longitudinal groove (4b) which extends at the region designed to face the portion of said band of heat-shrink film (5) that is designed to make contact with said perforation device (20) to provide said at least one easy-break portion (21).
8. The device (1) according to one or more of the preceding claims, characterized in that it comprises means for adjusting the relative position of said perforation device (20) with respect to said supporting frame (30).
9. The device (1) according to one or more of the preceding claims, characterized in that it comprises interface means which operate between said perforation device (20) and said supporting frame (30).
10. A method for labeling containers with sleeve-like labels, comprising a step of supplying at least one band of heat-shrink film (5) to a forming spindle (4) and a step of transferring a sleeve-like label (2) formed around said forming spindle (4) onto a container (10) supported by said device (1), a step being provided for perforating at least one portion of the sleeve-like label (2) or of said band of heat-shrink film (5) wrapped around said forming spindle (4) prior to said step of transferring said sleeve-like label (2) onto said container to be labeled (10).
1 1. The method according to claim 10, characterized in that said perforation step makes it possible to provide at least one easy-break portion (21) which runs parallel to the axis (101) of the respective forming spindle (4).
12. The method according to one or more of claims 10 or 11, characterized in that said at least one forming spindle (4) is supported at the peripheral region of a carousel (31) which can rotate about a rotation axis (100), Said perforation step comprising a step of relative movement between said forming spindle (4) and a perforation device (20) so as to provide, during contact between said perforation device (20) and said band of heat-shrink film (5) wrapped around said forming spindle (4), a rolling motion without sliding of said forming spindle (4) on said perforation device (20).
13. The method according to one or more of claims 10 to 12, characterized in that said relative motion step is performed by means of the rotary actuation of said forming spindle (4) about its own axis (101) to eliminate, during the step of contact between said perforation device (20) and said band of heat-shrink film (5) wrapped around the respective forming spindle (4), the effect of rotation of said forming spindle (4) around said carousel (31).
14. The method according to one or more of claims 10 to 13, characterized in that it provides for the execution of the following operations: a step of unwinding a film (13) from a reel (3), a step of cutting said film (13) to obtain sequentially said bands of heat-shrink film (5) designed to provide said sleeve-like labels (2), a step of wrapping each one of said bands of film (5) around a respective forming spindle (4) which is supported by the peripheral region of said carousel (31) so that it can rotate about its own axis (101), a step of heat-sealing the longitudinal edges (5a, 5b) of said band of heat-shrink film (5) in order to provide said sleeve-like label (2), and a step of transferring said formed sleeve-like label (2) to the outer surface ( 10a) of a container to be labeled (10).
15. The method according to one or more of claims 10 to 14, characterized in that said perforation step is performed between said step of wrapping said band of heat-shrink film (5) onto said forming spindle (4) and said step of transferring said sleeve-like label (2) toward said container to be labeled (10).
16. The method according to one or more of claims 10 to 15, characterized in that said perforation step is performed after said heat- sealing step.
EP20100814748 2009-12-30 2010-12-27 Device for manufacturing a shrink sleeve label Active EP2519445B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVR2009A000230A IT1397462B1 (en) 2009-12-30 2009-12-30 DEVICE FOR THE PRODUCTION OF A SLEEVE LABEL
PCT/IB2010/056081 WO2011080692A1 (en) 2009-12-30 2010-12-27 Device for manufacturing a shrink sleeve label

Publications (2)

Publication Number Publication Date
EP2519445A1 true EP2519445A1 (en) 2012-11-07
EP2519445B1 EP2519445B1 (en) 2014-06-04

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JP (1) JP5925128B2 (en)
ES (1) ES2513365T3 (en)
IT (1) IT1397462B1 (en)
WO (1) WO2011080692A1 (en)

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IT201900005106A1 (en) * 2019-04-04 2020-10-04 Itapack S R L ENGRAVING GROUP FOR PACKAGING LABELS
CN114275273A (en) * 2022-01-20 2022-04-05 安徽ē“«ę³‰ę™ŗčƒ½ę ‡ē­¾ē§‘ęŠ€ęœ‰é™å…¬åø Scratch detection method for plastic sleeve label

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US4302275A (en) * 1979-11-27 1981-11-24 Owens-Illinois, Inc. Apparatus for forming tubular plastic sleeves for application to bottles
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ZA9610069B (en) * 1995-12-04 1997-06-23 B & H Mfg Co Inc Method of labeling containers to facilitate de-labeling
DE19630690A1 (en) * 1996-07-30 1998-02-05 Kronseder Maschf Krones Bottle or the like with a label encompassing the scope, method and device for producing this bottle
JP3298000B2 (en) * 1998-06-26 2002-07-02 ęœ‰é™ä¼šē¤¾ äø­å°¾å·„ę„­ Film for PET bottle wrap having cut-out structure, method for producing the same, and apparatus for producing the same
ITPR20020049A1 (en) * 2002-08-27 2004-02-28 Simonazzi S P A Gia Sig Simonazzi Spa PROCEDURE FOR FORMING TUBULAR LABELS IN HEAT-SHRINK FILM AND MACHINE FOR FORMING LABELS AND INSERTING BOTTLES OR CONTAINERS IN GENERAL INSIDE THE FORMED LABELS.
ITMO20050230A1 (en) * 2005-09-12 2007-03-13 Sacmi Labelling S P A APPARATUS AND METHOD TO OBTAIN LABELS
ITMO20060203A1 (en) * 2006-06-22 2007-12-23 Sacmi Labelling S P A APPARATUS AND METHOD FOR LABELING
JP5088019B2 (en) * 2007-06-29 2012-12-05 å¤§ę—„ęœ¬å°åˆ·ę Ŗ式会ē¤¾ Cylindrical shrink label, container with cylindrical shrink label, and manufacturing method thereof

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Also Published As

Publication number Publication date
WO2011080692A1 (en) 2011-07-07
IT1397462B1 (en) 2013-01-10
JP2013516364A (en) 2013-05-13
EP2519445B1 (en) 2014-06-04
ES2513365T3 (en) 2014-10-24
ITVR20090230A1 (en) 2011-06-30
JP5925128B2 (en) 2016-05-25

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