EP1657196A2 - Hülsenklebevorrichtung für eine Umwickelmaschine und dazugehöriges Verfahren - Google Patents

Hülsenklebevorrichtung für eine Umwickelmaschine und dazugehöriges Verfahren Download PDF

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Publication number
EP1657196A2
EP1657196A2 EP05002109A EP05002109A EP1657196A2 EP 1657196 A2 EP1657196 A2 EP 1657196A2 EP 05002109 A EP05002109 A EP 05002109A EP 05002109 A EP05002109 A EP 05002109A EP 1657196 A2 EP1657196 A2 EP 1657196A2
Authority
EP
European Patent Office
Prior art keywords
gluing
glue
core
rollers
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05002109A
Other languages
English (en)
French (fr)
Other versions
EP1657196B1 (de
EP1657196A3 (de
Inventor
Sergio Casella
Mauro Biagioni
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.)
Paper Converting Machine Co Italia SpA
Paper Converting Machine Co
Original Assignee
Paper Converting Machine Co Italia SpA
Paper Converting Machine Co
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 Paper Converting Machine Co Italia SpA, Paper Converting Machine Co filed Critical Paper Converting Machine Co Italia SpA
Publication of EP1657196A2 publication Critical patent/EP1657196A2/de
Publication of EP1657196A3 publication Critical patent/EP1657196A3/de
Application granted granted Critical
Publication of EP1657196B1 publication Critical patent/EP1657196B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B65H19/283—Attaching the leading end of the web to the replacement web-roll core or spindle by applying adhesive to the core
    • 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
    • B65H2301/418—Changing web roll
    • B65H2301/4181—Core or mandrel supply
    • B65H2301/41812—Core or mandrel supply by conveyor belt or chain running in closed loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers

Definitions

  • the present invention refers to a device and to a method for gluing cores of a rewinding machine.
  • a rewinding machine is used for the formation of reels of sheet material originating from large parent reels.
  • the sheet material is wound on tubular cores, which are appropriately fed towards the winding unit of the rewinding machine.
  • a gluing unit which applies a strip of glue on the outer surface of the cores.
  • the European patent EP 0.697.988 describes a gluing unit of the overflow type.
  • the glue comes out of a slot positioned according to a directrix of the core by overflowing and is applied on the cores when they pass over the slot, conveyed by a chain provided with pushing devices. In this phase the core is kept in contact with the overflow device by means of a blade.
  • Said overflow gluing device has some drawbacks. It operates irregularly with high density glues, requires frequent maintenance for cleaning and does not permit adjustment of the amount of glue applied.
  • a gluing system commonly called wet bar is also known and used by the same applicant.
  • Said gluing system comprises a chain core conveying unit provided with pusher pins.
  • the glue is distributed by contact between the core and a steel bar wet by the glue.
  • the bar is immersed in tanks of glue.
  • the core When the core reaches the bar, the latter is raised by a system of levers driven by pneumatic cylinders until it comes into contact with the core, depositing part of the glue on the core itself.
  • the core is projected upwards until it knocks against plates positioned above the core at a distance of 3/5 mm.
  • the core is blocked between the plate, the chain pusher pin and the gluing bar. In this way the entire bar comes into contact longitudinally with the core.
  • the wet bar gluing system also has its drawbacks. Due to the up-down times of the bar and to the time it remains in the tank to pick up the glue, the speed of the glue distribution unit is limited and therefore the production capacity of the rewinding machine is limited. Furthermore the glue is applied on only one generatrix of the core.
  • the European patent application EP 1.249.417 owned by Gambini describes a core gluing device in which the cores are fed by a conveyor towards a pair of opposed counter-rotating rollers in which one roller picks up the glue from a tank.
  • the two rollers and the conveyor are driven in synchronism in order to obtain the same linear speed, so that the glue is applied along a generatrix of the core.
  • Said gluing system with synchronised rollers also has the drawback that the glue is applied only on one generatrix of the core and that the width of the glue application area cannot be varied.
  • Object of the present invention is to eliminate the drawbacks of the prior art by providing a core gluing device that permits the control of the amount and of the extent of the glue applied on the cores and at the same time to ensure a correct positioning of the cores at the rewinding machine inlet.
  • a further object of the present invention is to provide a core gluing device that can guarantee a regular distribution of the glue on the cores regardless of the type of glue used.
  • a further object of the present invention is to provide a core gluing device that ensures a high glue application speed on the cores.
  • the core gluing device for rewinding machine comprises:
  • the main characteristic of the invention is represented by the fact that positioning devices are provided arranged downstream of the gluing devices and upstream of the winding unit for the correct positioning of the core with the related trace of glue, before insertion between the rollers of the winding unit.
  • first and second gluing rollers can be driven at different speeds, to control the width of the trace of glue to be applied on the core.
  • the gluing device according to the invention has several advantages with respect to the prior art. Said gluing device permits:
  • elements are fitted on the first gluing roller, which pick up the glue contained in the glue container and apply the glue on the cores.
  • Said elements are interchangeable and can be easily replaced according to the form of the trace of glue required for application on the cores.
  • the gluing device comprises a conveyor 1 designed to convey a plurality of tubular cores (10a, 10b, 10c), a glue application unit 2 designed to apply the glue on the outer surface of said cores (10a, 10b, 10c) and positioning devices 4 designed to position the cores (10a, 10b, 10c) in a suitable position for their insertion between the winding rollers of a winding unit 6 (illustrated partially) forming part of the rewinding machine.
  • the conveyor 1 comprises a conveying surface A-A defined by the arrangement of conveying chains 11, sloping slightly upwards, on which the cores (10a, 10b, 10c) are conveyed in a feed direction indicated by the arrow F.
  • the conveyor 1 comprises one or more chains 11 driven by motorised crown gears 12 in order to feed the cores forward.
  • the conveyor chains 11 are fitted with a plurality of pusher devices 13 in the form of plates that protrude upwards, substantially square to the conveying surface A-A.
  • the pusher devices 13 are equidistant from each other so that the cores (10a, 10b, 10c) can be conveyed in sequence, with axis transverse with respect to the feed direction F and positioned in the corner formed between the conveying surface A-A and the respective pusher device 13.
  • the gluing unit 2 comprises a tank 20, which is filled with glue up to an intermediate level 21 illustrated by broken line.
  • the glue tank 20 is positioned below the core feed surface, i.e. below the conveying surface A-A.
  • a lower gluing roller 22 comprising a shaft 23 on which a plurality of disc-shaped flanges 24 spaced from each other are fitted, is provided into the tank 20.
  • the axis of the shaft 23 of the gluing roller 22 is above the level 21 of the glue and below the core feed surface and extends over a horizontal plane in a transverse direction with respect to the core feed direction.
  • the disc-shaped flanges 24 are equipped in a removable way with glue distribution elements 25 which protrude externally with respect to the disc-shaped flanges 24. In this way the elements 25 can be easily replaced according to the type of glue distribution required on the cores.
  • Each element 25 is in the shape of a bar with the surface facing the outside substantially convex.
  • the width of the element 25 is selected according to the width of the trace of glue required for application on the core.
  • Each element 25 can extend over the whole length of the lower gluing roller 22 or several elements 25 can be provided aligned longitudinally in order to cover the entire length of the lower gluing roller 22.
  • the elements 25 can vary in shape according to the dimension of the core in working and the to glue distribution required. Furthermore the elements can be so shaped to accommodate an optimal amount of glue.
  • the elements can be made of different types of materials both according to the core and to the glue used. In this way more or less porous materials can be chosen, with different surface finish. Brushes can also be used as elements 25.
  • three elements 25 are provided arranged equidistant from each other at an angle of 120°.
  • the shaft 23 of the lower gluing roller 22 is rotated by an independent motorization (not shown in the figure).
  • the elements 25 move from a position below the level of the glue 21 where they pick up the glue contained in the tank 20 to a position in which they are aligned with the conveying surface A-A for application of the glue on the cores.
  • the lower gluing roller 22 can be rotated continuously or step-by-step with the element 25 pausing briefly in the position in which it is aligned with the conveying surface.
  • each step corresponds to a rotation of the lower gluing roller 22 to perfectly align an element 25 with the conveying surface A-A.
  • each step corresponds to a rotation of 120° of the gluing roller 22.
  • a scraper unit 3 is provided into the tank 20 to scrape the excess of glue from the elements 25 before they reach the core gluing position.
  • the scraper unit 3 comprises a doctor or a blade 30, the end edge of which scrapes the outer surface of the elements 25 during the rotation of the lower gluing roller 22.
  • the doctor 30 is fitted on a cylindrical support, which can be appropriately rotated according to the shape and to the form of the elements 25. Furthermore the protrusion of the doctor 30 can be adjusted.
  • a second upper gluing roller 26 is positioned, which acts as a counter roller for the first lower gluing roller 22.
  • the second gluing roller 26 comprises a shaft 27 whose axis is parallel to the axis of the shaft 23 of the first gluing roller.
  • a plurality of disc-shaped flanges 28 are mounted on the shaft 27 of the second gluing roller 26.
  • the disc-shaped flanges 28 are fitted and fixed on the shaft 27 by means of suitable mechanical accessories.
  • the line connecting the centres of the first gluing roller 22 and of the of second gluing roller 26 is substantially square to the conveying surface A-A and the centre distance between said rollers can be adjusted and selected according to the diameter of the cores (10a, 10b, 10c).
  • the distance between the outer surface of the element 25 when it is aligned with the conveying surface A-A and the peripheral edge of the disc-shaped flanges 28 of the second gluing roller 26 is selected equal to the diameter of the cores.
  • the second gluing roller 26 is rotated by an independent motorization (not shown) so that it is counter-rotating with respect to the first roller 22, in the cores feed direction. Obviously, however, in some applications the rollers 22 and 26 can rotate in the same direction. Therefore the conveyor 1, the first lower gluing roller 22 and the second upper gluing roller 26 are moved by three independent motorizations.
  • the motorization of the first gluing roller 22 is synchronised with the motorization of the conveyor 1 so that the elements 25 are aligned with the conveying surface A-A whenever a core passes near the element 25.
  • the second gluing roller 26 is rotated at a different speed from that of the first gluing roller 22, according to the type of trace of glue required for application on the cores (10a, 10b, 10c).
  • the difference in speed between the first gluing roller 22 and the second gluing roller 26 entails a partial rotation of the core on the outer surface of the element 25.
  • the figure illustrates the core 10b coming out of the gluing unit 2.
  • Said core 10b has a trace of glue 100b in a position generally not suitable for insertion between the winding rollers.
  • Said position of the core is defined by the relative speed set between the gluing rollers (22, 26). Consequently the positioning devices 4 will partially rotate the core 10b so that the trace of glue 100b is in an optimal pre-set position 100c to accommodate the end edge of the sheet material for winding between the rollers of the winding unit 6.
  • the positioning devices 4 comprise a pair of opposed rollers, consisting of a first lower positioning roller 42 positioned below the core feed surface and a second upper positioning roller 46 positioned above the core feed surface.
  • the lower and upper positioning rollers (42, 46) comprise respective shafts (43, 47) on which respective disc-shaped flanges (44, 48) are fitted.
  • the axes of the positioning rollers (42, 46) are parallel to each other.
  • the line connecting said axes is substantially square to the core feed surface and the centre distance can be adjusted and selected according to the diameter of the cores (10a, 10b, 10c). This means that when a core passes between the positioning rollers its circumference must be tangent to the circumference of the disc-shaped flanges (43, 48) of the positioning rollers.
  • the lower positioning roller 42 is rotated in the same direction as the feed direction of the conveyor 1, by means of a belt or of a chain transmission 5 driven by a motor 50.
  • the upper positioning roller 46 is rotated in the opposite direction to that of the lower positioning roller, by means of an independent motorization.
  • the positioning rollers 42 and 46 could be rotated by the same motorization to guarantee the operation of the entire device.
  • the lower and upper positioning rollers (42, 46) are counter-rotating at the same speed or at different speeds. Obviously in some applications the positioning rollers (42, 46) can rotate in the same direction.
  • the rotation speeds of the positioning rollers (42, 46) are set in order to guarantee an appropriate rotation of the core, thus permitting the correct positioning of the trace of glue on the core which must come into contact with the winding rollers of the winding unit 6.
  • the figure illustrates the core 10c coming out of the positioning devices 4, in which the trace of glue 100c is positioned correctly to contact with end edge of the sheet material on the winding roller of the winding unit 6.
  • the upper gluing roller 22 and the upper positioning roller 42 can be rotated by the same motorization.

Landscapes

  • Coating Apparatus (AREA)
  • Replacement Of Web Rolls (AREA)
EP05002109A 2004-02-10 2005-02-02 Hülsenklebevorrichtung für eine Umwickelmaschine und dazugehöriges Verfahren Expired - Fee Related EP1657196B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000205A ITMI20040205A1 (it) 2004-02-10 2004-02-10 Dispositivo di incollaggio anime di una macchina ribobinatrice e relativo metodo

Publications (3)

Publication Number Publication Date
EP1657196A2 true EP1657196A2 (de) 2006-05-17
EP1657196A3 EP1657196A3 (de) 2008-05-14
EP1657196B1 EP1657196B1 (de) 2010-03-31

Family

ID=34814955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002109A Expired - Fee Related EP1657196B1 (de) 2004-02-10 2005-02-02 Hülsenklebevorrichtung für eine Umwickelmaschine und dazugehöriges Verfahren

Country Status (3)

Country Link
US (1) US20050173585A1 (de)
EP (1) EP1657196B1 (de)
IT (1) ITMI20040205A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1395572B1 (it) * 2009-09-14 2012-10-16 Resta Srl Apparecchiatura per l'applicazione di collante sulla superficie di pannelli in resina espansa sovrapponibili per la formazione di materassi stratificati.
US10427903B2 (en) 2016-03-04 2019-10-01 The Procter & Gamble Company Leading edge device for a surface winder
US10427902B2 (en) 2016-03-04 2019-10-01 The Procter & Gamble Company Enhanced introductory portion for a surface winder
US10442649B2 (en) 2016-03-04 2019-10-15 The Procter & Gamble Company Surface winder for producing logs of convolutely wound web materials

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402325A2 (de) 1989-06-08 1990-12-12 PERINI NAVI S.p.A. Vorrichtung zum Herstellen von Rollen aus bahnförmigem Material auf einer Hülse
EP1249417A2 (de) 2001-04-10 2002-10-16 Giovanni Gambini Vorrichtung zum Aufbringen von Klebstoff auf eine rohrförmige Hülse zum Einlegen in eine Umwickelvorrichtung zum Wickeln von Rollen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292919A (en) * 1979-09-24 1981-10-06 Taylor Walter C Non-metallic paste sectors and methods of fabricating and utilizing same
IT1167967B (it) * 1981-08-26 1987-05-20 Fabio Perini Ribobinatrice ad alta velocita' per nastri di carta in specie con perforazioni trasversali
IT1213818B (it) * 1987-09-01 1990-01-05 Perini Finanziaria Spa Attrezzatura per la distribuzione di collante su anime tubolari destinate alla formazione di bastoni o rotoli di nastro dicarta avvolta per carta igienica od altro, e per la alimentazione delle stesse alla macchina ribobinatrice
IT1262515B (it) * 1993-05-14 1996-07-02 Perini Fabio Spa Dispositivo per applicare un collante su un'anima di avvolgimento di un materiale nastriforme, metodo di applicazione e ribobinatrice incorporante detto dispositivo.
DE19845427A1 (de) * 1998-10-02 2000-04-06 Basf Ag Vorrichtung zum Aufbringen eines fließfähigen Mediums auf eine bewegte Oberfläche und deren Verwendung
US6056229A (en) * 1998-12-03 2000-05-02 Paper Converting Machine Co. Surface winder with pinch cutoff
US6422501B1 (en) * 2000-11-27 2002-07-23 Paper Converting Machine Company Core infeed apparatus for winder
ITMI20030101A1 (it) * 2003-01-23 2004-07-24 Giovanni Gambini Gruppo incollatore di un lembo d'estremita' di un log.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402325A2 (de) 1989-06-08 1990-12-12 PERINI NAVI S.p.A. Vorrichtung zum Herstellen von Rollen aus bahnförmigem Material auf einer Hülse
EP1249417A2 (de) 2001-04-10 2002-10-16 Giovanni Gambini Vorrichtung zum Aufbringen von Klebstoff auf eine rohrförmige Hülse zum Einlegen in eine Umwickelvorrichtung zum Wickeln von Rollen

Also Published As

Publication number Publication date
ITMI20040205A1 (it) 2004-05-10
EP1657196B1 (de) 2010-03-31
EP1657196A3 (de) 2008-05-14
US20050173585A1 (en) 2005-08-11

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