US20130001349A1 - Unreeling assembly, particularly for labeling devices - Google Patents

Unreeling assembly, particularly for labeling devices Download PDF

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Publication number
US20130001349A1
US20130001349A1 US13/261,359 US201113261359A US2013001349A1 US 20130001349 A1 US20130001349 A1 US 20130001349A1 US 201113261359 A US201113261359 A US 201113261359A US 2013001349 A1 US2013001349 A1 US 2013001349A1
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US
United States
Prior art keywords
reel
continuous film
unreeled
tensioning element
tensioning
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.)
Abandoned
Application number
US13/261,359
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English (en)
Inventor
Maurizio Pedercini
Ivan Di Pinto
Alessandro Gazzini
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
Assigned to SACMI VERONA S.P.A. reassignment SACMI VERONA S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DI PINTO, IVAN, GAZZINI, ALESSANDRO, PEDERCINI, MAURIZIO
Publication of US20130001349A1 publication Critical patent/US20130001349A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/048—Registering, tensioning, smoothing or guiding webs longitudinally by positively actuated movable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/20—Actuating means angular
    • B65H2555/24—Servomotors
    • 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

  • the present invention relates to an unreeling assembly, particularly for labeling devices.
  • the feeding means have, generally, an unreeling assembly, which is typically comprised of two reels of continuous film which are supported by a respective reel support; from one of the two reels, the continuous film is unreeled by means of a traction drum, and is then cut by a cutting assembly, arranged downstream of the unreeling assembly, to be then sent to the applicator elements.
  • an unreeling assembly which is typically comprised of two reels of continuous film which are supported by a respective reel support; from one of the two reels, the continuous film is unreeled by means of a traction drum, and is then cut by a cutting assembly, arranged downstream of the unreeling assembly, to be then sent to the applicator elements.
  • the “working” reel i.e. the reel from which the continuous film is unreeled
  • the traction drum a plurality of return rolls are normally interposed, as well as a tensioning dandy roll.
  • the unreeling assembly in addition to feeding the continuous film to the cutting assembly to be cut, also has the function of correctly tensioning the film, longitudinally, by means of the action of the tensioning dandy roll.
  • the tensioning dandy roll cooperates with the reel support, which can be governed by a braking device or by a servomotor.
  • the reel support which can be governed by a braking device or by a servomotor.
  • a first partial solution adopted nowadays to eliminate this drawback is to combine the braking device with a pneumatic motor, which also acts on the reel support and makes it possible to minimize the tension of the film being unreeled and therefore its longitudinal extension, predominantly during the initial phase of unreeling the reel.
  • a second type of unreeling assemblies has, instead of the pneumatic motor and the braking devices, a second servomotor which is designed to assist the servomotor associated with the traction drum to correctly handle the film being unreeled from the reel, both during the initial phase of unreeling (thus eliminating the stress on the film which is due to the effect of inertia of the rotating elements, reel and reel support), and during the work phase.
  • the control device when a displacement of the tensioning dandy roll from the set position is detected, the control device operates on the servomotor which is associated with the reel being unreeled to vary the linear speed of the unreeled film so as to return the tensioning dandy roll to the set position.
  • a drawback of this solution is the lack of control over the position of the tensioning dandy roll over time, with the consequence of not succeeding in optimizing the performance levels of the unreeling assembly during the work phase and, especially, during the step of connecting the end portion of the film being unreeled from the reel which is about to be depleted and the free end portion of the film which is wound around the other reel.
  • the known unreeling assemblies reduce the speed of the traction drum with a consequent reduction in the productivity of the labeling device that is arranged downstream of the unreeling assembly.
  • the aim of the present invention is to solve the problems and overcome the drawbacks mentioned above, by providing an unreeling assembly, particularly for labeling devices, that makes it possible to keep the speed of the traction drum high even during the connection step.
  • an object of the present invention is to develop an unreeling assembly, particularly for labeling devices, which makes it possible to reduce the stress to which the film is subjected, both during the work phase and during the connection step, with the same geometry of the unreeling assembly.
  • a further object of the invention is to provide an unreeling assembly, particularly for labeling devices, which is capable of increasing the range of grammages of the films to be processed.
  • an unreeling assembly particularly for labeling devices, comprising a supporting frame for at least two reels of continuous film which are supported by a respective reel support, which can be actuated to rotate about an unreeling axis of the reel by a respective servomotor, and a motorized traction drum, which is designed to unreel said continuous film from one of said at least two reels of continuous film, between the reel of film being unreeled and said traction drum there being at least one element for tensioning said continuous film, said tensioning element being movable, with respect to said supporting frame, along a respective movement path, characterized in that it comprises control means which operate on the servomotor and are adapted to control the position of said tensioning element along the respective movement path.
  • control means are adapted to move, on command, said tensioning element between at least one first working position, in which said tensioning element is adapted to apply a preset tension to said continuous film being unreeled, and at least one second accumulation position for increasing the length of the continuous film that lies between said reel being unreeled and said traction drum with respect to the length of said continuous film, between said reel being unreeled and said traction drum, with said tensioning element in said first working condition.
  • FIG. 1 is a schematic view of an unreeling assembly
  • FIG. 1 a is an enlarged view of a portion of the joining station shown in FIG. 1 ;
  • FIG. 2 is a graph showing the typical trend of the tension to which a continuous film being unreeled from a reel is subjected as a function of the angle of the tensioning dandy roll;
  • FIG. 3 shows a possible trend, as a function of time, of the position of a tensioning dandy roll of an unreeling assembly according to the invention in proximity to the connection step;
  • FIG. 3 shows a possible variation, again as a function of time, of the trend of the position of a tensioning dandy roll of an unreeling assembly according to the invention in proximity to the connection step;
  • FIG. 4 shows the trend, as a function of time, of the position of a tensioning dandy roll of a known unreeling assembly in proximity to the connection step.
  • the present invention relates to an unreeling assembly, generally indicated with the reference numeral 1 , particularly for labeling devices.
  • the unreeling assembly 1 comprises, in particular, a supporting frame 2 for at least two reels 3 of continuous film 10 which will be cut, typically by a cutting assembly, which is arranged downstream of the unreeling assembly 1 , to make the labels.
  • Each reel 3 is supported by a respective reel support 4 , which is rotatably mounted on the supporting frame 2 and can be actuated to rotate about a respective unreeling axis 100 of the reel 3 by a respective servomotor ( 13 a , 13 b ).
  • the unreeling assembly 1 is moreover provided with a traction drum 5 , which is motorized for example by an actuation motor 9 and is designed to unreel the continuous film 10 from one of the two reels 3 (hereinafter 3 a shall indicate the reel from which the continuous film 10 is being unreeled).
  • At least one tensioning element 6 is provided between the reel 3 a and the traction drum 5 , which tensioning element is movable, with respect to the supporting frame 2 , along a respective movement path that is schematized in FIG. 1 with the arrow marked with the reference numeral 200 .
  • the unreeling assembly 1 comprises control means 11 , which operate on the servomotor 13 a that is associated with the reel being unreeled 3 a , to control the position of the tensioning element 6 along the respective movement path 200 .
  • control means 11 are, in particular, adapted to move, on command and, advantageously, under defined operative conditions which shall be described in more detail hereinafter, the tensioning element 6 between at least one first working position, in which the tensioning element 6 is adapted to apply a preset tension to the continuous film 10 being unreeled, and at least one second accumulation position.
  • the length of the continuous film 10 that lies between the reel 3 a being unreeled and the traction drum 5 is greater than the length of the continuous film 10 between the reel 3 a being unreeled and the traction drum 5 when the tensioning element 6 is in the first working position.
  • control means 11 are capable, by operating on the servomotor (and specifically on the servomotor 13 b that is associated with the reel 3 b ), of bringing, in a controlled manner and according to a rule of motion which can be preset (see for example the trend of ⁇ in the time interval ⁇ t 4 in FIGS. 3 and 3 a ), the tensioning element 6 from the post-connection position (indicated with ⁇ 2 in FIGS.
  • the supporting frame 2 supports, between the reel 3 a of continuous film 10 being unreeled and the traction drum 5 , a plurality of return rolls 7 which include some return rolls of the tensioning device 7 a.
  • a joining station 8 which is designed to provide the connection between the end portion of the continuous film 10 being unreeled from the reel 3 a about to be depleted and the end portion 3 c of the film supported by the other reel 3 b.
  • the tensioning element 6 can be constituted by what is called a tensioning dandy roll 6 a which is supported by the supporting frame 2 so that it can rotate about a respective pivoting axis 101 .
  • the position of the tensioning element 6 with respect to the supporting frame 2 is defined by the angular shift ( ⁇ ) of the tensioning dandy roll 6 a about the pivoting axis 101 with respect to a predetermined base position.
  • control means 11 comprise means for commanding the servomotor ( 13 a , 13 b ) that is associated with the two reels ( 3 a , 3 b ).
  • the first working position of the tensioning element 6 substantially corresponds to the minimum tension position (designated by ⁇ 0 in the chart shown in FIG. 2 ) so as to minimize the longitudinal stress to which the film being unreeled is subjected and increase the stability of operation of the unreeling assembly 1 .
  • control means 11 are adapted to bring the tensioning element 6 from the first working position to the second accumulation position by means of a variation in the angular velocity ( ⁇ ) of the servomotor 13 a that is associated with the reel 3 a being unreeled.
  • control means 11 are capable of setting, substantially instantaneously, the speed ( ⁇ ) of the servomotor 13 a in such a way that the linear velocity of the continuous film 10 being unreeled from the reel 3 a (i.e.
  • upstream of the tensioning dandy roll 6 a is greater than the linear velocity of the film on the traction drum 5 (i.e. downstream of the tensioning dandy roll 6 a ).
  • the control means 11 are further capable of operating on the servomotor 13 a to exactly control (as can be seen for example in the diagram shown in FIG. 3 ) the angular position of the tensioning dandy roll 6 a during the entire connection step and, therefore, both to accumulate the film and to return the tensioning dandy roll 6 a from the post-connection angular position ⁇ 2 to the first working position ⁇ 0 according to a rule of motion which can be preset.
  • control means 11 are able to operate on the servomotors ( 13 a , 13 b ) which are associated with the two reels ( 3 a and 3 b ) to precisely define the movement of the tensioning dandy roll 6 a (and more generally of the tensioning element 6 ) as a function of time, and according to a rule of motion which can be preset, along the respective movement path 200 , unlike what occurs in the unreeling assemblies used today, which operate on the angular velocity of the servomotor or on the braking device only if a shift of the tensioning dandy roll 6 a from the working position is detected and, especially, according to a trend that is completely non-controlled, as shown in the diagram in FIG. 4 .
  • the joining station 8 is capable of making an optimal connection only at reduced linear velocities of the film upstream of the tensioning dandy roll, it will be possible, as shown in the diagram in FIG. 3 a , to use a rule of motion (in the sector ⁇ t 3 ) to slow down, before effecting the connection, the linear velocity of the film that is crossing the joining station 8 by “consuming” part of the film accumulated by the tensioning dandy roll 6 a in the second accumulation position without necessarily reducing the speed of the traction drum 5 .
  • a rule of motion in the sector ⁇ t 3
  • the first working position ⁇ 0 of the tensioning dandy roll 6 a is set, advantageously, on the basis of the geometry of the unreeling assembly 1 (position of the return rolls of the tensioning device 7 a and of the tensioning dandy roll 6 a ) so as to minimize, during the operation of the unreeling assembly 1 , the tensions to which the continuous film 10 being unreeled is subjected.
  • the control means 11 which are for example constituted by a processor or by a PLC, operate on the servomotor 13 a that is associated with the reel support 4 on which the reel 3 a that is about to be depleted is wound, so as to “force” the movement of the tensioning dandy roll 6 a towards the second accumulation position (indicated with ⁇ 1 in the diagrams in FIG. 3 and FIG. 3 a ) according to a rule of motion that can be preset.
  • This “forcing”, as has been explained, is done by acting on the angular velocity co of the servomotor 13 a that is associated with the reel 3 a about to be depleted by varying, in particular, this velocity gradually so that the trend of the movement of the tensioning element 6 as a function of time (for the purposes of example, the variation of ⁇ as a function of time as shown in FIGS. 3 and 3 a ) follows a “rule of motion” that is set appropriately.
  • control means 11 operate on the servomotor 13 b so as to gradually return, again following a “rule of motion” which can be preset, the tensioning element 6 from the post-connection position (position indicated with ⁇ 2 in FIG. 3 and in FIG. 3 a ) to the first working position ⁇ 0 .
  • the rules of motion used to command the movement of the tensioning dandy roll 6 a (and, more generally, of the tensioning element 6 ) along the respective movement path 200 are, in particular, chosen so as to:
  • the rules of motion are to be considered a succession, as a function of time, of intermediate positions between the initial position (for example ⁇ 0 or ⁇ 2 ) and the final position (for example ⁇ 1 or, respectively, ⁇ 0 ) that is desired to be reached.
  • the control means 11 are adapted to generate an extremely high number of intermediate positions so that the “rules of motion” that are actually followed by the tensioning dandy roll 6 a tend towards the preset “rules of motion”, such as for example a fifth-order polynomial or a trapezoidal.
  • an unreeling assembly 1 by making it possible to perceptibly reduce the longitudinal stress on the film being unreeled, allows the use of continuous films ( 10 ) with low grammage and/or limited height and/or low quality.
  • control means 11 it is possible to preset several rules of motion so as to make it possible to optimize, for example, the accumulation of film before the connection step or to limit the stress during the passage from the post-connection position to the first working position.
US13/261,359 2010-01-15 2011-01-13 Unreeling assembly, particularly for labeling devices Abandoned US20130001349A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITVR2010A000004 2010-01-15
ITVR2010A000004A IT1397685B1 (it) 2010-01-15 2010-01-15 Gruppo di sbobinatura, particolarmente per dispositivi di etichettatura
PCT/EP2011/050390 WO2011086122A1 (en) 2010-01-15 2011-01-13 Unreeling assembly, particularly for labeling devices

Publications (1)

Publication Number Publication Date
US20130001349A1 true US20130001349A1 (en) 2013-01-03

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Application Number Title Priority Date Filing Date
US13/261,359 Abandoned US20130001349A1 (en) 2010-01-15 2011-01-13 Unreeling assembly, particularly for labeling devices

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US (1) US20130001349A1 (it)
EP (1) EP2523882B1 (it)
ES (1) ES2573577T3 (it)
IT (1) IT1397685B1 (it)
WO (1) WO2011086122A1 (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015056116A1 (en) 2013-10-15 2015-04-23 Kimberly-Clark Worldwide, Inc. Active center pivot device for controlling sheet tension and method of using same
US20150254630A1 (en) * 2014-03-07 2015-09-10 First Data Corporation Systems and methods for mobile device purchase flows
CN107792703A (zh) * 2017-11-21 2018-03-13 苏州工业园区天势科技有限公司 用于复合标签的传送定位机构
EP3385203A1 (en) * 2017-04-07 2018-10-10 Mespack, S.L. Web film movement compensating device for a web film movement compensation between a continuous forward movement section and an intermittent forward movement section
CN109573159A (zh) * 2019-01-18 2019-04-05 广东拓斯达科技股份有限公司 一种覆膜装置
CN110029468A (zh) * 2019-03-25 2019-07-19 浙江富润印染有限公司 放卷张紧辊的水平调节驱动机构及清洁生产张紧系统
CN111453520A (zh) * 2020-04-10 2020-07-28 重庆泰美自动化科技有限公司 自动化保护片贴机撕膜控制系统
DE102021112852A1 (de) 2021-05-18 2022-11-24 Krones Aktiengesellschaft Etikettieraggregat und Verfahren zum Aufbringen von Etiketten auf Behältern
WO2023089490A1 (en) * 2021-11-16 2023-05-25 Körber Tissue Fold S.R.L. System and method for the setting of a machine for the conversion of paper

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US20050051257A1 (en) * 2003-09-09 2005-03-10 Lintec Corporation Connecting apparatus and connecting method of web material
US20050098677A1 (en) * 2002-05-10 2005-05-12 Tsugio Hirata Web splicing method and web splicing apparatus

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US4842660A (en) * 1986-03-28 1989-06-27 New Jersey Machine, Inc. Continuous motion pressure sensitive labeling system and method
US5306382A (en) * 1990-11-06 1994-04-26 Avery-Dennison Corporation Label dispenser conversion kit
JP2004155533A (ja) * 2002-11-05 2004-06-03 Fuji Xerox Co Ltd 連続紙搬送機構及びこれを有する印刷装置
US7568651B2 (en) * 2006-08-25 2009-08-04 Graphic Packaging International, Inc. Correction of loosely wound label rolls
DE102007050012A1 (de) * 2007-10-17 2009-04-23 Krones Ag Etikettieranlage und Vorrichtung zum Verifizieren

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US5273228A (en) * 1990-08-24 1993-12-28 Shikoku Kakoki Co., Ltd. Apparatus for continuously unwinding a plurality of rolled-up tapes
US20050098677A1 (en) * 2002-05-10 2005-05-12 Tsugio Hirata Web splicing method and web splicing apparatus
US20050051257A1 (en) * 2003-09-09 2005-03-10 Lintec Corporation Connecting apparatus and connecting method of web material

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015056116A1 (en) 2013-10-15 2015-04-23 Kimberly-Clark Worldwide, Inc. Active center pivot device for controlling sheet tension and method of using same
EP3057899A4 (en) * 2013-10-15 2018-03-21 Kimberly-Clark Worldwide, Inc. Active center pivot device for controlling sheet tension and method of using same
US20150254630A1 (en) * 2014-03-07 2015-09-10 First Data Corporation Systems and methods for mobile device purchase flows
EP3385203A1 (en) * 2017-04-07 2018-10-10 Mespack, S.L. Web film movement compensating device for a web film movement compensation between a continuous forward movement section and an intermittent forward movement section
WO2018185141A1 (en) * 2017-04-07 2018-10-11 Mespack, Sl Web film movement compensating device for a web film movement compensation between a continuous forward movement section and an intermittent forward movement section
US11046542B2 (en) 2017-04-07 2021-06-29 Mespack, Sl Web film movement compensating device for a web film movement compensation between a continuous forward movement section and an intermittent forward movement section
CN107792703A (zh) * 2017-11-21 2018-03-13 苏州工业园区天势科技有限公司 用于复合标签的传送定位机构
CN109573159A (zh) * 2019-01-18 2019-04-05 广东拓斯达科技股份有限公司 一种覆膜装置
CN110029468A (zh) * 2019-03-25 2019-07-19 浙江富润印染有限公司 放卷张紧辊的水平调节驱动机构及清洁生产张紧系统
CN111453520A (zh) * 2020-04-10 2020-07-28 重庆泰美自动化科技有限公司 自动化保护片贴机撕膜控制系统
DE102021112852A1 (de) 2021-05-18 2022-11-24 Krones Aktiengesellschaft Etikettieraggregat und Verfahren zum Aufbringen von Etiketten auf Behältern
WO2023089490A1 (en) * 2021-11-16 2023-05-25 Körber Tissue Fold S.R.L. System and method for the setting of a machine for the conversion of paper

Also Published As

Publication number Publication date
IT1397685B1 (it) 2013-01-18
EP2523882B1 (en) 2016-01-06
ES2573577T3 (es) 2016-06-08
EP2523882A1 (en) 2012-11-21
WO2011086122A1 (en) 2011-07-21
ITVR20100004A1 (it) 2011-07-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SACMI VERONA S.P.A., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PEDERCINI, MAURIZIO;DI PINTO, IVAN;GAZZINI, ALESSANDRO;REEL/FRAME:028604/0194

Effective date: 20120702

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION