EP2815815B1 - Groupe de collage avec dispositif d'approche réglable dans une machine à laminer-embosser, ladite machine associée et procédé de réglage de l'approche - Google Patents

Groupe de collage avec dispositif d'approche réglable dans une machine à laminer-embosser, ladite machine associée et procédé de réglage de l'approche Download PDF

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Publication number
EP2815815B1
EP2815815B1 EP14173088.7A EP14173088A EP2815815B1 EP 2815815 B1 EP2815815 B1 EP 2815815B1 EP 14173088 A EP14173088 A EP 14173088A EP 2815815 B1 EP2815815 B1 EP 2815815B1
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EP
European Patent Office
Prior art keywords
roll
group
approach
glueing
embosser
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
Application number
EP14173088.7A
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German (de)
English (en)
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EP2815815A1 (fr
Inventor
Giovanni Gambini
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.)
Gambini International SA
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Gambini International SA
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
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Priority to RS20170781A priority Critical patent/RS56132B1/sr
Publication of EP2815815A1 publication Critical patent/EP2815815A1/fr
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Publication of EP2815815B1 publication Critical patent/EP2815815B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0873—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work
    • B05C1/0878—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work responsive to the pressure applied between two rollers, e.g. between the coating roller and a backing roller or between the coating roller and a dosing roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/12—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being fed round the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations
    • B31F2201/0787—Applying adhesive

Definitions

  • the present invention refers to a glueing group with an adjustable approach device in an embosser-laminator, to a relative embosser-laminator and to a method for adjusting the approach.
  • embossers-laminators for paper comprise at least one embossing roll, at least one embossing counter-roll and a glueing group comprising a glue distribution roll, a dosing roll of the same glue and a glue tank.
  • the embossing roll is in abutment against the embossing counter-roll, for embossing at least one sheet of supplied paper, and on the other side it is in abutment against the distribution roll for distributing the glue on the same sheet of embossed paper.
  • the dosing roll in such groups has the purpose of feeding the glue on the distribution roll and in order to do this it is in turn coupled, with its external surface, on one side to a glue tank and on another side to the distribution roll.
  • the glue is taken from the tank, also called “doctor blade chamber” and is arranged on the at least one embossed sheet passing on the same block.
  • Document WO 2005/123374 A1 shows a gluing unit according to the preamble of claim 1, wherein the gluing unit is mounted to a support apparatus for embossing rolls onto mobile supports in order to allow the replacement of the embossing rolls.
  • the glue In order for the glue to be correctly applied from the distribution roll to the sheet of paper arranged on the embossing roll it is necessary to adjust the approach distance between the distribution roll of the glueing group and the steel embossing roll, which is expressed in glueing pressure.
  • the distance between the rolls in the order of a few hundredths of a millimetre must be such as to allow the sheet of paper to pass completely, since it has to receive the glue through a light pressure, and varies based upon the type of paper, the number of sheets and to the requirement of distributing more or less glue.
  • embosser-laminator In order for the embosser-laminator to operate optimally it is essential for the approaching distance to be adjusted in a precise manner and for it to be kept constant when the machine is working.
  • the approaching distance is adjusted manually "positionally” through the use of adjustment screws, that are positioned laterally, which operate on abutments.
  • the purpose of the present invention is to make a glueing group with adjustable approach device in an embosser-laminator, a relative embosser-laminator and a method for adjusting the approach that overcome the drawbacks mentioned above.
  • Another purpose of the present invention is to make a glueing group with adjustable approach device in an embosser-laminator, a relative embosser-laminator and a method for adjusting the approach that is capable of identifying and acting in the case in which there is the accidental formation of an accumulation of paper between the distribution roll and the embossing roll.
  • Another purpose of the present invention is that of making a glueing group with adjustable approach device in an embosser-laminator, a relative embosser-laminator and a method for adjusting the approach that are particularly simple and functional, with low costs.
  • an embosser-laminator 100 carrying a glueing group 10 which is provided with an adjustable approach device 20.
  • the opposite side, which is not shown, has the same components.
  • the embosser-laminator 100 comprises an embossing roll 120 and an embossing counter-roll 110, between which at least one sheet of paper 101 is returned by.
  • the glueing group 10 comprises a glue distribution roll 12 and a dosing roll 13 of the same glue.
  • glue in general, a glueing substance preferably with a fluid behaviour is meant.
  • the embossing roll 120 is respectively coupled along two different generatrices with the embossing counter-roll 110 for embossing the at least one sheet of paper 101 and with the distribution roll 12 that distributes the glue on the at least one sheet of embossed paper 101.
  • the dosing roll 13 is in turn respectively coupled along two different generatrices with a glue tank 14 for picking up the glue and with the distribution roll 12 for feeding the glue picked up onto the distribution roll 12, respectively.
  • the glue tank 14 consists of a so-called doctor blade chamber, comprising a "C"-shaped body, which is suitable for containing the glue, which is arranged laterally substantially along the entire development of the dosing roll 13.
  • the "C"-shaped body of the glue tank 14 is delimited at the ends by two side walls that are provided, at the end facing the dosing roll 13, with sealing elements, like for example gaskets.
  • the side walls indeed extend up to the proximity of the side surface portion of the dosing roll 13, defining the axial development of the dosing roll 13 on which the glue is distributed.
  • the adjustable approach device 20 of the glueing group 10 towards the embossing roll 120 comprises, on each side, a slide 21, consisting of a side frame carrying the distribution roll 12, which is in turn applied onto a fixed side frame 11 of the glueing group 10 through one or more linear guides 22, which are oriented so as to allow the distribution roll 12 to carry out linear movements towards/away from the steel embossing roll 120 in the direction that is orthogonal to the axes of the rolls, as schematically shown in the figure by the double arrow F.
  • the guides 22 are preferably low-friction guides, like for example recirculating ball guides, to make the approach device 20 more sensitive to low loads.
  • the dosing roll 13 and the glue tank 14 associated with it are in turn removably constrained to the slide 21 through a second side frame 15.
  • Each slide 21, which constitutes the side frame of the distribution roll 12 is actuated by a driving group 23 comprising an adjustable actuator 24, which is connected at one mobile end to the slide 21 and at the opposite end to a fixed load cell 25 which continuously checks the load applied.
  • the adjustable actuator 24 consists of a pneumatic piston/cylinder device that is equipped with a proportional valve that proportionally controls the approach pressure exerted, i.e. the thrust between the steel embossing roll 120 and the rubber distribution roll 12.
  • a control system continuously checks that, through the load cell 25 which it is connected to, the approach pressure value set by the panel remains unvaried during operation.
  • the actuator 24 is coupled with a selectively-actuable blocking system 26, for example a brake, which ensures that the actuator 24 does not have movements or yielding, thus making it behave as a rigid element during the normal operation of the embosser-laminator 100.
  • a selectively-actuable blocking system 26 for example a brake, which ensures that the actuator 24 does not have movements or yielding, thus making it behave as a rigid element during the normal operation of the embosser-laminator 100.
  • the brake 26, is loosened so as to carry out the adjustment of the approach pressure or for moving the glueing group 10 away from the embossing roll 120 in the case in which paper is accidentally accumulated. It is particularly advantageous to apply the brake 26 in the case in which the actuator is of the pneumatic type, or other devices that for their nature do not behave rigidly at low pressure.
  • the adjustable approach device 20 of the glueing group 10 towards the embossing roll 120 actuates a method for adjusting the approach between the distribution roll 12 and the embossing roll 120 with a pressure control instead of a distance control.
  • the correct approach between the distribution roll 12 and the embossing roll 120 is identified through the detection of a light pressure exerted by the distribution roll 12 on the embossing roll 120 carrying the sheet of paper 101.
  • the predetermined approach pressure at the moment of the initial adjustment of the machine and set through the action of the adjustable actuator 24, on each of the sides of the machine, is indicatively selected in the range between 0.02 Kg/linear cm up to 1.5 kg/linear cm, that is expressed according to a unit of measurement that is typically used in the field.
  • the approach pressure is detected continuously by the load cell 25 and, in the case in which variations are detected that can be set in the order of 1 to 20 Kg, it is possible to command an emergency stop of the machine by unlocking the brakes 26 and inverting the actuation of the actuator 24 since such a variation is considered an anomaly of the process.
  • the adjustment of a new approach pressure value during the operation of the machine can also be set from the panel if it is desired to modify the predetermined values of the machine and not only in the case in which the load cell 25 detects values that are different from the predetermined value.
  • the method for adjusting the approach between the glueing group 10 and the embossing roll 120 in an embosser-laminator 100 provides carrying out the following steps:
  • the glueing group with adjustable approach device in an embosser-laminator, the relative embosser-laminator and the method for adjusting the approach object of the present invention have the advantage of carrying out the control on the approach pressure continuously during the operation of the embosser-laminator and not only during the initial setting of the operation parameters.
  • the adjustable approach device object of the present invention it is advantageously possible to control, from the panel, the approach pressure between the steel embossing roll and the rubber distribution roll in any state of the machine, i.e. both when the machine is still and when the machine is in motion, by carrying out modifications to the adjustments without stopping the machine.
  • the adjustable approach device object of the present invention also allows to detect possible accidental accumulation of paper between the steel embossing roll and the rubber distribution roll, automatically commanding an emergency stop of the embosser-laminator.
  • the adjustment device can be advantageously applied to common known glue groups.
  • the glueing group with adjustable approach device in an embosser-laminator, the relative embosser-laminator and the method for adjusting the approach thus conceived can undergo numerous modifications and variants, all covered by the invention; moreover, all the details can be replaced by technically equivalent elements.
  • the materials used, as well as the dimensions, can be any according to the technical requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Coating Apparatus (AREA)

Claims (10)

  1. Groupe de collage (10) avec dispositif d'approche réglable dans une machine à laminer-embosser, comprenant un rouleau de distribution de colle (12), un rouleau de dosage (13) de cette même colle et un réservoir de colle (14), caractérisé en ce qu'il comprend, sur chaque côté, une glissière (21), constituée d'un châssis latéral supportant ledit rouleau de distribution (12), dans lequel ladite glissière (21) est appliquée sur un châssis latéral fixe (11) dudit groupe de collage (10) par le biais d'au moins un guide linéaire (22), orienté dans une direction orthogonale par rapport aux axes desdits rouleaux, ladite glissière (21) étant connectée à un groupe d'entraînement (23) comprenant un actionneur réglable (24), connecté à une extrémité mobile de ladite glissière (21) et à une extrémité opposée à un capteur de charge fixe (25) qui contrôle de manière continue la charge appliquée.
  2. Groupe selon la revendication 1, caractérisé en ce que ledit actionneur réglable (24) est couplé avec un système de blocage actionnable de manière sélective (26), tel qu'un frein, pour rendre ledit actionneur (24) un élément rigide sans mouvements ou déformations.
  3. Groupe selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que ledit actionneur réglable (24) comprend un dispositif à cylindre/piston pneumatique équipé d'une vanne proportionnelle qui commande proportionnellement la pression d'approche exercée.
  4. Groupe selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un système de commande de la pression d'approche qui est connecté audit capteur de charge (25).
  5. Groupe selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un guide (22) est un guide à faible friction.
  6. Groupe selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit rouleau de dosage (13) et ledit réservoir de colle (14) associé à celui-ci sont à leur tour fixés de manière amovible à ladite glissière (21) par le biais d'un deuxième châssis latéral (15).
  7. Machine à laminer-embosser comprenant au moins un rouleau d'embossage (120), au moins un contre-rouleau d'embossage (110) et un groupe de collage (10), ledit groupe de collage (10) comprenant un rouleau de distribution de colle (12), un rouleau de dosage (13) de cette même colle et un réservoir de colle (14), caractérisé en ce que ledit groupe de collage (10) est selon l'une quelconque des revendications 1 à 6.
  8. Procédé de réglage de l'approche entre un groupe de collage (10) et un rouleau d'embossage (120) dans une machine à laminer-embosser (100), caractérisé en ce qu'une commande sur la pression d'approche entre un rouleau de distribution (12) dudit groupe de collage (10) et ledit rouleau d'embossage (120) est exécutée de manière continue durant le fonctionnement au moyen d'un capteur de charge (25).
  9. Procédé selon la revendication 8, caractérisé en ce qu'il comporte les étapes suivantes :
    - le réglage, de chaque côté, d'une valeur prédéterminée de la pression d'approche entre lesdits rouleaux,
    - la commande continue, de chaque côté, de la valeur instantanée de la pression d'approche exercée.
  10. Procédé selon la revendication 9, caractérisé en ce que ladite étape de réglage d'une valeur prédéterminée de la pression d'approche entre lesdits rouleaux peut être exécutée avec la machine immobile ou en mouvement, sans distinction.
EP14173088.7A 2013-06-19 2014-06-19 Groupe de collage avec dispositif d'approche réglable dans une machine à laminer-embosser, ladite machine associée et procédé de réglage de l'approche Active EP2815815B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RS20170781A RS56132B1 (sr) 2013-06-19 2014-06-19 Grupa za lepljenje sa uređajem za podesivi pristup kod laminator-utiskivača, odnosni laminator-utiskivač i postupak za podešavanje pristupa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001019A ITMI20131019A1 (it) 2013-06-19 2013-06-19 Gruppo colla con dispositivo di accostamento regolabile in un goffratore-laminatore, relativo goffratore-laminatore e metodo di regolazione dell'accostamento

Publications (2)

Publication Number Publication Date
EP2815815A1 EP2815815A1 (fr) 2014-12-24
EP2815815B1 true EP2815815B1 (fr) 2017-05-10

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EP14173088.7A Active EP2815815B1 (fr) 2013-06-19 2014-06-19 Groupe de collage avec dispositif d'approche réglable dans une machine à laminer-embosser, ladite machine associée et procédé de réglage de l'approche

Country Status (4)

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EP (1) EP2815815B1 (fr)
ES (1) ES2636796T3 (fr)
IT (1) ITMI20131019A1 (fr)
RS (1) RS56132B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20163030A1 (it) * 2016-04-29 2017-10-29 O M T Di Giannini Graziano E Damiano & C S N C Gruppo di deposito
WO2021205252A1 (fr) * 2020-04-10 2021-10-14 Fabio Perini S.P.A. Machine et procédé servant à gaufrer des produits de bande de papier
CN115489167A (zh) * 2021-06-18 2022-12-20 广东志德胜科技有限公司 一种压花误差自动补偿装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241743A1 (de) * 1992-12-11 1994-06-16 Bhs Bayerische Berg Beleimungsvorrichtung für eine Wellpappen-Anlage
ITFI20040139A1 (it) * 2004-06-18 2004-09-18 O M Futura S P A Apparato di supporto per rulli goffratori e metodo per la sostituzione degli stessi

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EP2815815A1 (fr) 2014-12-24
ES2636796T3 (es) 2017-10-09
RS56132B1 (sr) 2017-10-31
ITMI20131019A1 (it) 2014-12-20

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