EP2202188A1 - Wickelgruppe und -verfahren zum Wickeln von Papier um einen Kern zum Herstellen eines Logs - Google Patents

Wickelgruppe und -verfahren zum Wickeln von Papier um einen Kern zum Herstellen eines Logs Download PDF

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Publication number
EP2202188A1
EP2202188A1 EP09180392A EP09180392A EP2202188A1 EP 2202188 A1 EP2202188 A1 EP 2202188A1 EP 09180392 A EP09180392 A EP 09180392A EP 09180392 A EP09180392 A EP 09180392A EP 2202188 A1 EP2202188 A1 EP 2202188A1
Authority
EP
European Patent Office
Prior art keywords
paper
winding roller
core
roller
channel
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.)
Withdrawn
Application number
EP09180392A
Other languages
English (en)
French (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
Original Assignee
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
Application filed by Gambini International SA filed Critical Gambini International SA
Publication of EP2202188A1 publication Critical patent/EP2202188A1/de
Withdrawn legal-status Critical Current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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B65H19/267—Cutting-off the web running to the wound web roll by tearing or bursting

Definitions

  • the present invention refers to an improved winding group and method for winding paper around a core to make a log.
  • rollers that cooperate to wind the log.
  • the paper moving forward on a roller is torn by suitable devices so as to define two edges of which the one downstream is called “final edge” and is wound on the finished log, whereas the one upstream is called “initial edge” and is associated with the new core being inserted into the machine.
  • the "initial edge” is held on the roller and slowed down by the tearing head necessarily creating a paper accumulation zone upstream of the head itself.
  • the purpose of the present invention is to make a winding method and group for winding paper around a core to make a log capable of solving the aforementioned drawbacks of the prior art in an extremely simple, cost-effective and particularly functional manner.
  • Another purpose is to make a winding method and group for winding paper around a core to make a log in which the "initial edge" of paper comes into contact with a new core tightened in an ideal manner.
  • Yet another purpose is to be able to have a winding method and group for winding paper around a core to make a log in which during the tearing of the paper there is no accumulation of paper at the "initial edge".
  • Yet another purpose is to be able to have a winding method and group for winding paper around a core to make a log in which the tearing of the paper occurs upstream of the relative devices for tearing the paper itself.
  • a winding group for winding paper 11' around a core 11 to make a log 11" is shown with 10.
  • Such a winding group 10 comprises, in an upstream position, means for transporting and introducing a succession of cores 11 one after the other in a channel 12 that, as can be seen in the figures, is defined at the top by an upper winding roller 14, supplied from above with the paper 11' directed towards the channel 12 itself, and at the bottom by a cradle member 13.
  • a lower winding roller 15, associated downstream of the cradle member 13, and a third oscillating roller 16 arranged above the lower winding roller 15 are also foreseen.
  • a rod member 17 is foreseen rotating or oscillating around a pin 18 and provided with a head 20 for cyclic cooperation with the upper winding roller 14 for tearing the paper 11' making direct contact with the latter against the upper winding roller 14.
  • such a head 20 of the rod member 17, at least near to the upper winding roller 16 and thus during the tearing of the paper 11', has a greater peripheral speed with respect to that of the upper winding roller 14.
  • the head 20 will have a speed that is greater by about 20% with respect to the upper winding roller 14.
  • a speed ratio means that the section of paper 11' to undergo a tightening is exclusively that upstream of the head 20, unlike all rewinders currently known, thus tearing the paper 11' upstream of the head 20.
  • the rod member 17 cyclically rotates or oscillates around the pin 18 selectively firstly accelerating as it approaches the upper winding roller 14 upon contact with the paper 11' in order to definitely have a greater speed with respect to that of the upper winding roller 14.
  • the rod member 17 after the aforementioned stopping can carry out a rotation in the opposite direction, in other words going towards the upper winding roller 14.
  • the rod member 17 is rototranslating.
  • Such rototranslating movement is the component of the continuous rotation of the rod 17 around the pin 18 with a cyclic translation of the pin 18 itself away from and towards the roller 14.
  • the rod member 17 in the withdrawn position of the pin 18, visible in figures 5 and 7-8 , can rotate freely around the pin 18 without interfering in any way and coming into contact with the paper 11' moving forward on the roller 14.
  • the rod member 17 can continuously rotate without ever stopping keeping the relative rotation speed high, in particular higher than that of the roller 14 on which the paper 11' moves forward, without imposing high accelerations on the rod when approaching the roller 14.
  • the cyclic movement of the pin 18 towards and away from the roller 14 is controlled by a rod 71 constrained at the front to a guiding support 70, on which the pin 18 is associated, and that is eccentrically hinged at the rear to a rotary actuator.
  • the machine 10 comprises a connecting rod 71 - crank 72 assembly in which the head of the connecting rod is defined by the guiding support 70 able to slide away from and towards the roller 14, through the effect of the crank 72, on suitable pins 73 or idle rollers.
  • the cyclic means for tearing the paper 11' are arranged upstream of the channel 12 and cooperate with means for keeping the paper 11' adhering around the upper winding roller 14 acting at least upstream of the channel 12.
  • such means for keeping the paper 11' act both along a section upstream and a section downstream of the cyclic tearing means to keep both the initial edge 60, upstream of the head 20, and the final edge 50 adhering around the upper winding roller 14.
  • the latter comprises a plurality of longitudinal channels 22 arranged according to a circular ring in proximity to its cylindrical outer side surface.
  • Such longitudinal channels 22 pass through from one head to the other head of the upper winding roller 14 and each of them 22 is placed in communication with the outside on the cylindrical outer side surface of the upper winding roller 14 through a plurality of holes 23.
  • suctioning shoes 24 Cooperating with such longitudinal channels 22 there is a pair of suctioning shoes 24, for example in the shape of a circular sector, arranged in axis with the roller 14 and fixed facing the opposite heads in which these suctioning shoes 24 are suitable for causing air to be sucked in through the channels 22 comprised between them from the outside towards the inside of the upper winding roller 14.
  • the aforementioned suctioning shoes 24 extend on the heads of the upper winding roller 14 both above and below the point of cyclic contact of the head 20 with the external cylindrical surface of the roller 14 itself. In the depicted example the shoes 24 extend for a sector of about 180°.
  • the suction through the shoes 24 can be continuous or suitably synchronised with the operation of the group 10 and ensures the transportation of the initial edge 60 adhering to the shell of the roller in the fraction that runs between the tearing of the paper and the insertion of the new core in the channel 12.
  • sucking surface of the upper roller 14 avoids the initial edge 60 of the paper 11' returning back and the greater speed of the head 20 avoids any accumulation of paper upstream of the head 20 itself.
  • a thruster 52 can be foreseen rotating around a pin to insert the cores 11 into the channel 12 at the unloading of the finished log 11" and at the start of a new log to be formed.
  • the aforementioned means to cause the winding comprise means for supplying glue 21 to the core 11 arranged upstream of the channel.
  • the means to cause the initial edge 60 to wind on the core 11 introduced into the channel 12 can comprise means for taking the initial edge 60 away from the upper winding roller 14 arranged at the channel 12 substantially downstream of the cyclic means for tearing said paper 11' and of the suction shoes 24.
  • such means for taking away the initial edge 60 have the purpose of thrusting the initial edge 60 of the paper 11' towards the lower portion of the channel 12 promoting its firm engagement on the new core 11 that is moving forward in the channel 12 trapping the paper 11' between the core 11 moving forward and the cradle 13.
  • the means for taking the initial edge 60 away from the upper winding roller 14 can be of any type, for example of the mechanical type such as cams, but according to a preferred embodiment they comprise a pair of shoes 25 shaped like a circular sector arranged in axis with the roller 14 facing opposite heads at the channel 12 substantially downstream of the cyclic means for tearing the paper 11'.
  • Such shoes 25 are suitable for causing air to come out through the channels 22 comprised between them and thrusting the initial edge 60 of the paper 11' downwards into a position comprised between the core 11 moving forward and the cradle 13.
  • the dispenser of glue 21 on the core upstream of the channel 12 can preferably comprise means for depositing a plurality of arcs of circle 21 of glue on at least an outer portion of the core 11 so as not to require a particularly precise timing of the core itself 11 at the introduction into the channel 12. Indeed, since the glue 21 is distributed along an arc of circle, almost independently from its position on the core 11 at the introduction of the channel 12, it will take care of meeting and securely holding the initial edge 60 of the paper 11'.
  • the group 10 can comprise an upper abutment plane 61 that at least partially extends from the means for supplying glue towards the channel 12 above the means for transporting and introducing the core 11 and knurled timing elements 62.
  • Such an upper abutment plane 61 and such knurled elements 62 impose a controlled rotation upon the core 11 after the supply of glue 21 to arrange it in an optimal position for immediately receiving the initial edge 60 as soon as the core 11 is inserted into the channel 12.
  • the means for supplying glue on the core 11 comprise a container 40 for the glue equipped with an opening 41 oriented upwards and associated with the means for transporting and introducing the core 11 into the channel 12.
  • a member 42 is housed that is mobile between a first position for receiving the glue by immersion and a second position for supplying the glue received onto the core 11 moving forward on the transporting and introducing means.
  • Such a mobile member comprises a plurality of free heads 43 shaped like a convex arc of circle, in which every free head 43 in the first receiving position is immersed in the glue and in the second supplying position it projects from the opening 41 towards the core 11 as schematised in figure 1 .
  • the transportation means can, for example, comprise a plurality of chains 53 each equipped with thrusters 51. It is very easy to understand how the group 10 object of the invention operates.
  • the winding group 10 for winding paper 11' around a core 11 to make a log 11" cyclically carries out the steps of:
  • the rotating rod member 17 for tearing the paper 11' upstream of the head 20 carries out the cyclic steps of:
  • glue 21 on the core 11 it is of course also foreseen for there to be the steps of depositing glue 21, preferably in the shape of an arc of circle, on an outer portion of the core 11 and, optionally, transporting such a core 11 provided with glue 21 in a controlled manner up to the channel 12.
  • the winding method and group for winding paper around a core to make a log of the present invention allows the "initial edge" of paper to make contact with a new core in the ideal manner without any accumulation of paper or undesired creases causing the paper from tearing upstream of the relative devices for tearing the paper itself.
  • the winding method and group for winding paper around a core to make a log of the present invention thus conceived can undergo numerous modifications and variants, all of which are covered by the same inventive concept; moreover, all of the details can be replaced by technically equivalent elements.
  • the materials used, as well as their sizes, can be whatever according to the technical requirements.
EP09180392A 2008-12-23 2009-12-22 Wickelgruppe und -verfahren zum Wickeln von Papier um einen Kern zum Herstellen eines Logs Withdrawn EP2202188A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2008A002313A IT1392403B1 (it) 2008-12-23 2008-12-23 Gruppo e metodo perfezionato di avvolgimento di carta attorno ad un'anima per realizzare un rotolo di carta

Publications (1)

Publication Number Publication Date
EP2202188A1 true EP2202188A1 (de) 2010-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09180392A Withdrawn EP2202188A1 (de) 2008-12-23 2009-12-22 Wickelgruppe und -verfahren zum Wickeln von Papier um einen Kern zum Herstellen eines Logs

Country Status (3)

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US (1) US20100163665A1 (de)
EP (1) EP2202188A1 (de)
IT (1) IT1392403B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104176541B (zh) * 2013-05-24 2017-11-10 佛山市宝索机械制造有限公司 一种适用于无芯和有芯纸卷的复卷机吸附式起卷方法
US9776437B2 (en) 2013-09-17 2017-10-03 Hewlett-Packard Development Company, L.P. Printer accessory and printer
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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723724A (en) * 1985-04-17 1988-02-09 Paper Converting Machine Web winding machine and method
WO1994021545A1 (en) 1993-03-24 1994-09-29 Fabio Perini S.P.A. Rewinding machine and method for the formation of logs of web material with means for severing the web material
WO1994029205A1 (en) * 1993-06-09 1994-12-22 Fabio Perini S.P.A. Rewinder for producing logs of web material, selectively with or without a winding core
US5769352A (en) * 1994-06-16 1998-06-23 Fabio Perini S.P.A. Web rewinding machine, adaptable to different core diameters
EP1262434A2 (de) 2001-06-01 2002-12-04 Giovanni Gambini Vorrichtung zum Umwickeln und Formen einer Papierrolle in einer Umwickelmaschine
US20030037725A1 (en) * 1998-12-03 2003-02-27 Daul Thomas J. Apparatus for applying glue to cores
US20040061021A1 (en) * 2002-09-27 2004-04-01 Butterworth Tad T. Rewinder apparatus and method
WO2007141819A1 (en) * 2006-06-09 2007-12-13 Fabio Perini S.P.A. Method and device for producing logs of web material with a mechanism for interrupting the web material activated by passage of the winding cores
EP1988041A2 (de) * 2007-05-04 2008-11-05 Giovanni Gambini Umwickelmaschine zum Umwickeln und Formen einer Papierrolle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1278644B1 (it) * 1995-04-14 1997-11-27 Perini Fabio Spa Macchina ribobinatrice per rotoli di materiale nastriforme, con controllo dell'introduzione dell'anima di avvolgimento
ITFI20020122A1 (it) * 2002-07-09 2004-01-09 Perini Fabio Spa Macchina ribobinatrice per la produzione di rotoli di materiale nastriforme avvolto e relativo metodo
ITMI20060395U1 (it) * 2006-11-15 2008-05-16 Gambini Giovanni Macchina ribobinatrice migliorata per la ribobinatura e la formazione di un rotolo di carta
IT1392694B1 (it) * 2009-01-29 2012-03-16 Gambini Int Sa Ribobinatrice migliorata e relativo metodo per l'avvolgimento di carta attorno ad un'anima per la realizzazione di un rotolo di carta

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723724A (en) * 1985-04-17 1988-02-09 Paper Converting Machine Web winding machine and method
WO1994021545A1 (en) 1993-03-24 1994-09-29 Fabio Perini S.P.A. Rewinding machine and method for the formation of logs of web material with means for severing the web material
WO1994029205A1 (en) * 1993-06-09 1994-12-22 Fabio Perini S.P.A. Rewinder for producing logs of web material, selectively with or without a winding core
US5769352A (en) * 1994-06-16 1998-06-23 Fabio Perini S.P.A. Web rewinding machine, adaptable to different core diameters
US20030037725A1 (en) * 1998-12-03 2003-02-27 Daul Thomas J. Apparatus for applying glue to cores
EP1262434A2 (de) 2001-06-01 2002-12-04 Giovanni Gambini Vorrichtung zum Umwickeln und Formen einer Papierrolle in einer Umwickelmaschine
US20040061021A1 (en) * 2002-09-27 2004-04-01 Butterworth Tad T. Rewinder apparatus and method
WO2007141819A1 (en) * 2006-06-09 2007-12-13 Fabio Perini S.P.A. Method and device for producing logs of web material with a mechanism for interrupting the web material activated by passage of the winding cores
EP1988041A2 (de) * 2007-05-04 2008-11-05 Giovanni Gambini Umwickelmaschine zum Umwickeln und Formen einer Papierrolle

Also Published As

Publication number Publication date
ITMI20082313A1 (it) 2010-06-24
IT1392403B1 (it) 2012-03-02
US20100163665A1 (en) 2010-07-01

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