EP3018083B1 - Device for supporting reels of webs with self-adhesive labels - Google Patents
Device for supporting reels of webs with self-adhesive labels Download PDFInfo
- Publication number
- EP3018083B1 EP3018083B1 EP15193600.2A EP15193600A EP3018083B1 EP 3018083 B1 EP3018083 B1 EP 3018083B1 EP 15193600 A EP15193600 A EP 15193600A EP 3018083 B1 EP3018083 B1 EP 3018083B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- guide
- supports
- reel
- web
- 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.)
- Active
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
- B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
- B65H19/1831—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being stationary prior to splicing contact
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- 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
- B65C9/08—Label feeding
- B65C9/18—Label feeding from strips, e.g. from rolls
- B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip
- B65C9/1869—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred directly from the backing strip onto the article
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- 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
- B65C9/08—Label feeding
- B65C9/18—Label feeding from strips, e.g. from rolls
- B65C9/1892—Spools or cassettes for strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1857—Support arrangement of web rolls
- B65H19/1863—Support arrangement of web rolls with translatory or arcuated movement of the roll supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/417—Handling or changing web rolls
- B65H2301/4171—Handling web roll
- B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
- B65H2301/41734—Handling web roll by central portion, e.g. gripping central portion involving rail
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/4601—Splicing special splicing features or applications
- B65H2301/46014—Splicing special splicing features or applications of webs with labels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/461—Processing webs in splicing process
- B65H2301/4615—Processing webs in splicing process after splicing
- B65H2301/46152—Processing webs in splicing process after splicing cutting off tail after (flying) splicing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
- B65H2301/4631—Adhesive tape
- B65H2301/46312—Adhesive tape double-sided
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/30—Supports; Subassemblies; Mountings thereof
- B65H2402/32—Sliding support means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/194—Web supporting regularly spaced adhesive articles, e.g. labels, rubber articles, labels or stamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/75—Labelling machines
Definitions
- This invention relates to a device for supporting reels of webs with self-adhesive labels, in particular intended to be used in labelling machines equipped with systems for joining the webs.
- labelling machines or the related labelling units intended to apply self-adhesive labels are supplied with said labels applied one after another on suitable backing webs which are wound in reels.
- the machine usually comprises two supports, one for the reel being unwound and one for the new reel, as well as systems for retaining the starting edge of the new reel which already has an adhesive element on it, in a standby position.
- the prior art solutions are all affected by the fact that the webs to be joined are asymmetrical, since the labels are applied on only one side of the web. Consequently, depending on how the two reels of the webs to be joined are positioned and how the reels are positioned, the joining operation may require various even relatively complex operations. In general, it may be the case that the new web to be joined to the web that is about to finish is positioned at the side of the latter on which the labels are located or at the opposite side on which no labels are present.
- DE 198 18 384 A1 discloses an appliance method for joining strips of adhesive labels.
- a driven feeder holds the start of the new support strip.
- the start of the new support strip is held in a stationary position, accelerated to the feeder speed of the old support strip and conveyed between pressure surfaces.
- DE 100 63 000 A1 discloses a roll changing system for web-fed printing machine, comprising rotating shafts on which old and new rolls are mounted and can slide in diagonal guides which cross each other, allowing their position to be adjusted.
- the technical purpose which forms the basis of this invention is to provide a device for supporting reels of webs with self-adhesive labels that overcomes the above-mentioned disadvantages
- the technical purpose of this invention is to provide a device for supporting reels of webs with self-adhesive labels that allows the webs to be joined to always be made available to the labelling machine with the same mutual positioning, in such a way that the join can always be made in the same way.
- the numeral 1 denotes in its entirety a device for supporting reels of webs with self-adhesive labels, made according to this invention. Hereinafter, it will be referred to simply as the device 1.
- Figure 1 shows the device 1 connected to a labelling unit 2 of a labelling machine.
- this invention relates to the device 1 in itself, to a labelling unit 2 equipped with the device 1 and to the entire labelling machine equipped with the device 1.
- the labelling unit 2 visible in the figures is in itself of the known type, it will not be described in further detail herein.
- Figure 2 also shows a joining unit 3 associated with the labelling unit 3 which allows the join to be made between two webs arriving from the supporting device.
- the joining unit 3 may be made in any way. However, being a unit that is in itself known, it will not be described in detail herein.
- the device 1 always comprises a supporting structure 5, at least two supports 6, each for supporting a reel of web with self-adhesive labels fixed on a first side 7 of it.
- the supports 6 are rotatably mounted or mountable on the supporting structure 5, one at a first position (the lower position in the accompanying figures) and one at a second position (the upper position in the accompanying figures).
- first guide means 8 and second guide means 9 At least when the device 1 is associated with the labelling unit there are first guide means 8 and second guide means 9 present.
- the first guide means 8 define a main feed path for a first web 10 which, in use, extends from a first reel 11 mounted on the support positioned in the first position, to an outfeed section 12 of the joining unit.
- the second guide means 9 define a secondary feed path for a second web 13 which, in use, extends from a second reel 14 mounted on the support positioned in the second position, to an operating zone identified along the main feed path in the joining unit 3.
- Each support 6 is equipped with two idle return rollers 63 which, depending on the position adopted by the support, may be part of the first guide means 8 or of the second guide means 9.
- main feed path and the secondary feed path coincide respectively with the way in which the first web 10 and the second web 13 extend.
- both the first web 10 and the second web 13 are positioned in such a way that their surface, although having a complex shape, is parallel to a reference axis transversal to the main feed path, which in the accompanying figures is horizontal and coincides with the axis of rotation of the reels 11, 14, and with their own sides positioned in the same way.
- the main and secondary feed paths and the first web 10 and the second web 13 substantially appear to be a curved line.
- the positions of the two supports 6 on the supporting structure 5 can be inverted, and, on the other hand, a support 6 positioned in the second position can be moved to the first position, allowing, during the entire movement, unwinding of the second web 13 from the second reel 14 and, in use, its free feeding from the second reel 14 towards the operating zone.
- a support 6 positioned in the second position can be moved to the first position, allowing, during the entire movement, unwinding of the second web 13 from the second reel 14 and, in use, its free feeding from the second reel 14 towards the operating zone.
- the supporting structure 5 comprises a guide 46, advantageously straight, on which the supports 6 are slidably mounted. Therefore, each support 6 can pass from the second position to the first position by sliding along the guide 46.
- the guide 46 advantageously comprises two separate portions, a first portion 47 which defines the first position for the supports 6 and a second portion 48 which defines the second position for the supports 6. At least the first portion 47 is rotatable between an aligned position ( Figures 4 , 21 and 28 ) in which it is aligned with the second portion 48 and allows the passage of a support 6 from the second portion 48 to the first portion 47, and a rotated position ( Figures 22 and 27 ) in which it is not aligned with the first portion 47 and allows the removal of a support 6 from it, preferably by simply pulling it off.
- an aligned position Figures 4 , 21 and 28
- a rotated position Figures 22 and 27
- the first portion 47 pivots at the supporting structure 5 according to an axis of rotation coinciding with that of the first reel 11 positioned on the support 6 in the first position.
- the second portion 48 in turn, on the opposite side to the first portion 47, is open for allowing one of the supports 6 to be coupled to it ( Figure 29 ).
- the movement of the first portion 47 may be performed using a manually operated lever 49 connected to an air spring 50. However, in other embodiments it may be performed automatically and/or be motor-driven.
- the guide 46 is constituted of a rail on which the supports 6 are slidably coupled by means of four V-shaped pulleys 51 which are positioned on both sides of the rail, and on the other hand it comprises at least one vertical component of extension (in the accompanying drawings it is in fact set at an angle of approximately 60° to the horizontal plane).
- the device 1 advantageously comprises at least one positioning unit 52, movable parallel to the guide 46 between an upper position in which it retains a support 6 positioned in the second position, a lower operating position in which it can support a support 6 positioned substantially in the first position, and a lower non-operating position in which it is positioned lower than the lower operating position and is uncoupled from the support 6 in the first position.
- the positioning unit 52 comprises a body 53 ( Figures 5 and 6 ) comprising a resting portion 54 and a following portion 55.
- the resting portion 54 (constituted of a cantilever-style pin in the accompanying figures) is designed to interact with a support 6 so as to sustain it.
- the following portion 55 is slidably associated with a cam portion 56 of the supporting structure 5.
- the following portion 55 comprises two following rollers 57 which are at a distance from one another and from an axis of rotation of the body 53.
- the body 53 is rotatable about an axis of rotation which translates with the body 53 and which is transversal to a main line of extension of the guide 46.
- the body 53 is rotatable between a sustaining position in which the resting portion 54 can interact with a support 6 mounted on the guide 46 so as to sustain it ( Figure 8 ), and a home position in which the resting portion 54 cannot engage with a support 6 associated with the guide 46 ( Figure 16 ).
- elastic means 58 (a torsion spring in the accompanying figures) associated with the body 53 for pushing it towards the home position.
- the cam portion 56 in turn causes forced positioning of the body 53 in the sustaining position at least at the positioning unit 52 upper position, whilst it allows it to rotate towards the home position at least near to and at the lower operating position and between the lower operating position and the lower non-operating position. In fact, in this way it is possible to perform the translation of the positioning unit 52 from the non-operating home position to the sustaining position even when a support 6 is present in the respective first position.
- the movement of the body 53 along the cam portion 56 is achieved by means of a cylinder without a rod 59, equipped with a slide 60 to which the body 53 is rotatably connected.
- the body 53 is in the upper position and, thanks to the interaction of the cam portion 56 with the following portion 55, in the sustaining position, with the resting portion 54 interacting with a corresponding resting element 61 fixed to the support 6, sustaining it.
- the weight of the support 6 overcomes the resistance of the elastic means 58 and holds the body 53 rotated with the following portion 55 only partly coupled to the cam portion 56.
- the resting portion 54 is in fact positioned on the other side of a vertical plane passing through the pivoting point of the body 53.
- the support 6 When the body 53 reaches the lower operating position, the support 6 reaches the end of its stroke corresponding to the first position, and it engages in a suitable fork 62 fixed to the guide 46 ( Figure 11 ), and advantageously fixed to the first portion 47 for rotating with it ( Figure 22 ).
- the figure shows the situation running regularly, with the first web 10 being unwound, and the second web 13 ready for the join to be made in the joining unit (therefore, stationary for the time being).
- the joining unit When the first web 10 finishes ( Figure 26 ), the joining unit is activated and makes the join between a final end of the first web 10 and a starting end of the second web 13. Then unwinding of the second web 13 begins and it is fed to the labelling machine ( Figure 27 ).
- first the first portion 47 of the guide 46 is rotated into the not aligned position ( Figure 22 ) and the empty support 6 in the first position is removed ( Figures 23 and 27 ).
- first the first portion 47 has been returned to the aligned position ( Figure 24 ) it is possible to slide the other support 6 from the second position to the first position ( Figure 28 ).
- This invention brings important advantages.
- the device according to this invention it has been possible to provide a device for supporting reels of webs with self-adhesive labels, that always allows two webs to be joined to each other to be made available to the labelling machine with the same mutual positioning, in such a way that the join can always be made in the same way, thereby also making the structure of the joining unit that will be used simpler.
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- Replacement Of Web Rolls (AREA)
- Labeling Devices (AREA)
Description
- This invention relates to a device for supporting reels of webs with self-adhesive labels, in particular intended to be used in labelling machines equipped with systems for joining the webs.
- It is known that labelling machines (or the related labelling units) intended to apply self-adhesive labels are supplied with said labels applied one after another on suitable backing webs which are wound in reels.
- Although there are many labels (several thousand) on each reel, the ever increasing productivity of labelling machines has increasingly highlighted the problem linked to the switch from one reel to another, since a reel can be used up within a few dozen minutes.
- Where stopping the machine briefly to fit a new reel in the past did not cause particular problems, nowadays that would no longer be possible without drastically reducing productivity.
- Consequently, various solutions have gradually been studied and put forward to allow joining of the end of one reel with the start of the next reel without having to stop the machine or which minimise the down time.
- In particular, manual solutions were studied (in which joining is performed manually by the operator), as well as semi-automatic solutions and automatic solutions.
- In all cases, the machine usually comprises two supports, one for the reel being unwound and one for the new reel, as well as systems for retaining the starting edge of the new reel which already has an adhesive element on it, in a standby position.
- In all of the prior art solutions, when a first reel mounted on a support finishes, the starting part of the web of a second reel mounted on the other support is joined to the end part of the first web, then the first reel is substituted with a new one. Similarly, when the second reel finishes the starting part of the web of the reel used to substitute the first is joined to the end part of the second web, and so on.
- However, the prior art solutions are all affected by the fact that the webs to be joined are asymmetrical, since the labels are applied on only one side of the web. Consequently, depending on how the two reels of the webs to be joined are positioned and how the reels are positioned, the joining operation may require various even relatively complex operations. In general, it may be the case that the new web to be joined to the web that is about to finish is positioned at the side of the latter on which the labels are located or at the opposite side on which no labels are present.
- Consequently, in the prior art apparatuses, if joining of the web of the above-mentioned second reel to that of the first reel can be performed using some methods, joining of the web of the new reel that substituted the first, now finished one, to the web of the second reel that is about to finish must be performed using different methods.
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DE 198 18 384 A1 discloses an appliance method for joining strips of adhesive labels. A driven feeder holds the start of the new support strip. The start of the new support strip is held in a stationary position, accelerated to the feeder speed of the old support strip and conveyed between pressure surfaces. -
DE 100 63 000 A1 discloses a roll changing system for web-fed printing machine, comprising rotating shafts on which old and new rolls are mounted and can slide in diagonal guides which cross each other, allowing their position to be adjusted. -
US 2,000,809 discloses a roll handling mechanism. - In this context, the technical purpose which forms the basis of this invention is to provide a device for supporting reels of webs with self-adhesive labels that overcomes the above-mentioned disadvantages
- In particular, the technical purpose of this invention is to provide a device for supporting reels of webs with self-adhesive labels that allows the webs to be joined to always be made available to the labelling machine with the same mutual positioning, in such a way that the join can always be made in the same way.
- The technical purpose specified and the aims indicated are substantially achieved by a device for supporting reels of webs with self-adhesive labels as described in the appended claims.
- Further features and the advantages of this invention are more apparent in the detailed description, with reference to the accompanying drawings which illustrate several preferred, non-limiting embodiments of a device for supporting reels of webs with self-adhesive labels, in which:
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Figure 1 is an axonometric view of a labelling unit of a labelling machine, equipped with a supporting device in accordance with this invention; -
Figure 2 is an enlarged view of only a joining device and the supporting device ofFigure 1 ; -
Figure 3 is an axonometric view, also showing the reels of web, of the supporting device ofFigure 2 ; -
Figure 4 shows the device ofFigure 3 without the reels and the related supports; -
Figures 5 and 6 are respectively an axonometric and a front view of a part of a positioning unit of a reel support of the supporting device ofFigure 3 ; -
Figures 7 ,9 ,11 ,13 ,15 ,17 and19 show perpendicularly to a guide of the device, operation of the device ofFigure 3 concerning the movement of a support on it; -
Figures 8 ,10 ,12 ,14 ,16 ,18 and20 are respectively enlarged views of VIII, X, XII, XIV, XVI, XVIII, XX ofFigures 7 ,9 ,11 ,13 ,15 ,17 and19 ; -
Figures 21 to 24 are side views as inFigure 4 , of the steps relating to removal of a support from the supporting device ofFigure 3 ; -
Figure 25 shows the supporting device according to this invention with one reel unwinding and one reel standing by; -
Figure 26 shows, with the upper reel transparent, the device ofFigure 25 at the moment when the lower reel finishes and unwinding of the upper reel is about to begin; and -
Figures 27 to 29 show the method for inversion of the position of the two supports of the device ofFigure 26 , with the reels shown transparent. - With reference to the above-mentioned figures the
numeral 1 denotes in its entirety a device for supporting reels of webs with self-adhesive labels, made according to this invention. Hereinafter, it will be referred to simply as thedevice 1. - It should also be noticed that, hereinafter, when reference is made to a line of extension of three-dimensional objects, it will always refer to their main line of extension, that is to say, the one parallel to which the objects have their maximum length.
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Figure 1 shows thedevice 1 connected to alabelling unit 2 of a labelling machine. Obviously, this invention relates to thedevice 1 in itself, to alabelling unit 2 equipped with thedevice 1 and to the entire labelling machine equipped with thedevice 1. However, since thelabelling unit 2 visible in the figures is in itself of the known type, it will not be described in further detail herein. -
Figure 2 also shows a joiningunit 3 associated with thelabelling unit 3 which allows the join to be made between two webs arriving from the supporting device. The joiningunit 3 may be made in any way. However, being a unit that is in itself known, it will not be described in detail herein. - According to this invention the
device 1 always comprises a supportingstructure 5, at least two supports 6, each for supporting a reel of web with self-adhesive labels fixed on afirst side 7 of it. - The
supports 6 are rotatably mounted or mountable on the supportingstructure 5, one at a first position (the lower position in the accompanying figures) and one at a second position (the upper position in the accompanying figures). - At least when the
device 1 is associated with the labelling unit there are first guide means 8 and second guide means 9 present. - The first guide means 8 define a main feed path for a
first web 10 which, in use, extends from afirst reel 11 mounted on the support positioned in the first position, to an outfeed section 12 of the joining unit. - The second guide means 9 define a secondary feed path for a
second web 13 which, in use, extends from asecond reel 14 mounted on the support positioned in the second position, to an operating zone identified along the main feed path in the joiningunit 3. Eachsupport 6 is equipped with twoidle return rollers 63 which, depending on the position adopted by the support, may be part of the first guide means 8 or of the second guide means 9. - It should be noticed that in the accompanying figures the main feed path and the secondary feed path coincide respectively with the way in which the
first web 10 and thesecond web 13 extend. - Advantageously, along the respective paths, both the
first web 10 and thesecond web 13 are positioned in such a way that their surface, although having a complex shape, is parallel to a reference axis transversal to the main feed path, which in the accompanying figures is horizontal and coincides with the axis of rotation of thereels first web 10 and thesecond web 13 substantially appear to be a curved line. - According to the inventive aspect of this invention, on one hand the positions of the two supports 6 on the supporting
structure 5 can be inverted, and, on the other hand, asupport 6 positioned in the second position can be moved to the first position, allowing, during the entire movement, unwinding of thesecond web 13 from thesecond reel 14 and, in use, its free feeding from thesecond reel 14 towards the operating zone. In this way, when the movement is complete, it is possible to position a new reel on theother support 6 placed in the second position and so be in the starting situation. Consequently, thanks to this invention, in theory it would be possible to keep fitting new reels, joining them to the previous reels, without interruptions. - For that purpose, in the case of the
device 1 illustrated in the accompanying figures, the supportingstructure 5 comprises aguide 46, advantageously straight, on which thesupports 6 are slidably mounted. Therefore, eachsupport 6 can pass from the second position to the first position by sliding along theguide 46. - For the opposite passage of the
other support 6, that is to say, from the first position to the second position, theguide 46 advantageously comprises two separate portions, afirst portion 47 which defines the first position for thesupports 6 and asecond portion 48 which defines the second position for thesupports 6. At least thefirst portion 47 is rotatable between an aligned position (Figures 4 ,21 and28 ) in which it is aligned with thesecond portion 48 and allows the passage of asupport 6 from thesecond portion 48 to thefirst portion 47, and a rotated position (Figures 22 and27 ) in which it is not aligned with thefirst portion 47 and allows the removal of asupport 6 from it, preferably by simply pulling it off. Advantageously, thefirst portion 47 pivots at the supportingstructure 5 according to an axis of rotation coinciding with that of thefirst reel 11 positioned on thesupport 6 in the first position. Thesecond portion 48 in turn, on the opposite side to thefirst portion 47, is open for allowing one of thesupports 6 to be coupled to it (Figure 29 ). - In the embodiment illustrated, the movement of the
first portion 47 may be performed using a manually operatedlever 49 connected to anair spring 50. However, in other embodiments it may be performed automatically and/or be motor-driven. - In the preferred embodiment, on one hand the
guide 46 is constituted of a rail on which thesupports 6 are slidably coupled by means of four V-shaped pulleys 51 which are positioned on both sides of the rail, and on the other hand it comprises at least one vertical component of extension (in the accompanying drawings it is in fact set at an angle of approximately 60° to the horizontal plane). - To facilitate the movement of the
supports 6 and holding in the second position, thedevice 1 advantageously comprises at least onepositioning unit 52, movable parallel to theguide 46 between an upper position in which it retains asupport 6 positioned in the second position, a lower operating position in which it can support asupport 6 positioned substantially in the first position, and a lower non-operating position in which it is positioned lower than the lower operating position and is uncoupled from thesupport 6 in the first position. - In the preferred embodiment, the
positioning unit 52 comprises a body 53 (Figures 5 and 6 ) comprising aresting portion 54 and a followingportion 55. The resting portion 54 (constituted of a cantilever-style pin in the accompanying figures) is designed to interact with asupport 6 so as to sustain it. - In contrast, the following
portion 55 is slidably associated with acam portion 56 of the supportingstructure 5. Advantageously, the followingportion 55 comprises two followingrollers 57 which are at a distance from one another and from an axis of rotation of thebody 53. - In fact, the
body 53 is rotatable about an axis of rotation which translates with thebody 53 and which is transversal to a main line of extension of theguide 46. In particular, thebody 53 is rotatable between a sustaining position in which the restingportion 54 can interact with asupport 6 mounted on theguide 46 so as to sustain it (Figure 8 ), and a home position in which the restingportion 54 cannot engage with asupport 6 associated with the guide 46 (Figure 16 ). There are also elastic means 58 (a torsion spring in the accompanying figures) associated with thebody 53 for pushing it towards the home position. In contrast, thecam portion 56 in turn causes forced positioning of thebody 53 in the sustaining position at least at thepositioning unit 52 upper position, whilst it allows it to rotate towards the home position at least near to and at the lower operating position and between the lower operating position and the lower non-operating position. In fact, in this way it is possible to perform the translation of thepositioning unit 52 from the non-operating home position to the sustaining position even when asupport 6 is present in the respective first position. - In the accompanying figures the movement of the
body 53 along thecam portion 56 is achieved by means of a cylinder without arod 59, equipped with aslide 60 to which thebody 53 is rotatably connected. - The sequence of steps for the passage of a
support 6 from the second position to the first position (once the latter is free) and for preparing thedevice 1 to receive anothersupport 6 in the second position is illustrated inFigures 7 to 20 . - Initially (
Figures 7, 8 ), thebody 53 is in the upper position and, thanks to the interaction of thecam portion 56 with the followingportion 55, in the sustaining position, with the restingportion 54 interacting with acorresponding resting element 61 fixed to thesupport 6, sustaining it. During the entire descent of thebody 53 to the lower operating position, the weight of thesupport 6 overcomes the resistance of the elastic means 58 and holds thebody 53 rotated with the followingportion 55 only partly coupled to thecam portion 56. Relative to a lower followingroller 57 of the followingportion 55, the restingportion 54 is in fact positioned on the other side of a vertical plane passing through the pivoting point of thebody 53. When thebody 53 reaches the lower operating position, thesupport 6 reaches the end of its stroke corresponding to the first position, and it engages in asuitable fork 62 fixed to the guide 46 (Figure 11 ), and advantageously fixed to thefirst portion 47 for rotating with it (Figure 22 ). - At that point, the further descent of the
body 53 frees the restingportion 54 and the elastic means 58 can return thebody 53 to the home position. At this point, the restingportion 54 is not aligned with the restingelement 61 fixed to thesupport 6 which is in the first position (Figures 13, 14 ). - Therefore it is possible to return the
positioning unit 52 towards the upper position without there being any interaction between the restingportion 54 and the restingelement 61 of thesupport 6 in the first position (Figures 15, 16 ). - When the
body 53 reaches the upper part of the cam portion 56 (Figures 17, 18 ) the interaction between the latter and an upper followingroller 57 of the followingportion 55 causes a new rotation of thebody 53 towards the sustaining position, so that when thebody 53 reaches the upper position it is ready to receive and support a new support 6 (Figures 19, 20 ). - Regarding overall operation of the
device 1 according to this invention, that is to say, the feeding of thewebs unit 3, the figure shows the situation running regularly, with thefirst web 10 being unwound, and thesecond web 13 ready for the join to be made in the joining unit (therefore, stationary for the time being). - When the
first web 10 finishes (Figure 26 ), the joining unit is activated and makes the join between a final end of thefirst web 10 and a starting end of thesecond web 13. Then unwinding of thesecond web 13 begins and it is fed to the labelling machine (Figure 27 ). - At this point, it is possible to start the operations for inverting the positions of the two supports while unwinding of the
second web 13 continues. - For that purpose, first the
first portion 47 of theguide 46 is rotated into the not aligned position (Figure 22 ) and theempty support 6 in the first position is removed (Figures 23 and27 ). When thefirst portion 47 has been returned to the aligned position (Figure 24 ) it is possible to slide theother support 6 from the second position to the first position (Figure 28 ). - At that point, the
other support 6 previously removed, loaded with a new reel, can be fitted on thesecond portion 48 of the guide 46 (Figure 29 ) until it rests on thebody 53 in the sustaining position, restoring the condition ofFigure 25 . - This invention brings important advantages.
- In fact, thanks to the device according to this invention it has been possible to provide a device for supporting reels of webs with self-adhesive labels, that always allows two webs to be joined to each other to be made available to the labelling machine with the same mutual positioning, in such a way that the join can always be made in the same way, thereby also making the structure of the joining unit that will be used simpler.
- Finally, it should be noticed that even the cost linked to implementing this invention is not very high compared with similar prior art devices.
- The invention described above may be modified and adapted in several ways without thereby departing from the scope of the inventive concept.
- All details of the invention may be substituted with other technically equivalent elements and the materials used, as well as the shapes and dimensions of the various components, may vary according to requirements.
Claims (4)
- A device for supporting reels of webs with self-adhesive labels for labelling machines comprising:a supporting structure (5);at least two supports (6) each for supporting a reel of web with self-adhesive labels fixed on one side of it, the supports (6) being rotatably mounted or mountable on the supporting structure (5), one at a first position and one at a second position;wherein the positions of the two supports (6) can be inverted, and a support (6) positioned in the second position can be moved to the first position, allowing, during the entire movement, unwinding of a web from a reel (14) mounted on it;
characterised in that
the supporting structure (5) also comprises a guide (46) on which the supports (6) are slidably mounted, each support (6) being able to pass from the second position to the first position by sliding along the guide (46); and said guide (46) comprises two separate portions, a first portion (47) defining the first position for the supports (6) and a second portion (48) defining the second position for the supports (6), in that at least the first portion (47) is rotatable between an aligned position in which it is aligned with the second portion (48) and allows the passage of a support (6) from the second portion (48) to the first portion (47), and a rotated position in which it is not aligned with the first portion (47) and allows the removal of a support (6) from it, and in that the second portion (48) in turn, on the opposite side to the first portion (47), is open to allow one of the supports (6) to be coupled to it. - The device according to claim 1, characterised in that the guide (46) comprises at least one vertical component of extension and in that it also comprises at least one positioning unit (52), movable parallel to the guide (46) between an upper position in which it retains a support (6) positioned in the second position, a lower operating position in which it supports a support (6) positioned substantially in the first position, and a lower non-operating position in which it is positioned lower than the lower operating position and is uncoupled from the support (6) in the first position.
- The device according to claim 2, characterised in that the positioning unit (52) also comprises a body (53) comprising a resting portion (54) for a support (6) and a following portion (55) slidably associated with a cam portion (56) of the supporting structure (5), said body (53) being rotatable, about an axis of rotation transversal to a main line of extension of the guide (46), between a sustaining position in which the resting portion (54) can interact with a support (6) mounted on the guide (46) so as to sustain it, and a home position in which the resting portion (54) cannot engage with a support (6) associated with the guide (46), elastic means (58) being associated with the body (53) for pushing it towards the home position; the cam portion (56) causing the positioning of the body (53) in the sustaining position at least at the upper position of the positioning unit (52), and allowing it to rotate towards the home position at least near to and at the lower operating position and between the lower operating position and the lower non-operating position, for allowing translation of the positioning unit (52) from the non-operating home position to the sustaining position even when a support (6) is present in the respective first position.
- A labelling machine comprising a device (1) according to any one of the preceding claims.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVR20140278 | 2014-11-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3018083A1 EP3018083A1 (en) | 2016-05-11 |
EP3018083B1 true EP3018083B1 (en) | 2019-01-09 |
Family
ID=52293097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15193600.2A Active EP3018083B1 (en) | 2014-11-10 | 2015-11-09 | Device for supporting reels of webs with self-adhesive labels |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3018083B1 (en) |
ES (1) | ES2714909T3 (en) |
TR (1) | TR201903304T4 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2000809A (en) * | 1930-09-30 | 1935-05-07 | Wood Newspaper Mach Corp | Roll handling mechanism |
DE19818384A1 (en) * | 1998-04-24 | 1999-10-28 | Kuehl Entwicklung Und Geraeteb | Appliance method for joining strips of adhesive labels |
DE10063000C2 (en) * | 2000-12-16 | 2003-05-15 | Koenig & Bauer Ag | Device for connecting two rolls of material |
-
2015
- 2015-11-09 EP EP15193600.2A patent/EP3018083B1/en active Active
- 2015-11-09 ES ES15193600T patent/ES2714909T3/en active Active
- 2015-11-09 TR TR2019/03304T patent/TR201903304T4/en unknown
Also Published As
Publication number | Publication date |
---|---|
TR201903304T4 (en) | 2019-03-21 |
EP3018083A1 (en) | 2016-05-11 |
ES2714909T3 (en) | 2019-05-30 |
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