EP0638500B1 - Wickelmaschine für bandförmiges Material - Google Patents

Wickelmaschine für bandförmiges Material Download PDF

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Publication number
EP0638500B1
EP0638500B1 EP94111550A EP94111550A EP0638500B1 EP 0638500 B1 EP0638500 B1 EP 0638500B1 EP 94111550 A EP94111550 A EP 94111550A EP 94111550 A EP94111550 A EP 94111550A EP 0638500 B1 EP0638500 B1 EP 0638500B1
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
reeling machine
machine according
diameter
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.)
Expired - Lifetime
Application number
EP94111550A
Other languages
English (en)
French (fr)
Other versions
EP0638500A1 (de
Inventor
Renato Matteucci
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.)
Alberto Consani SpA
Original Assignee
Alberto Consani 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 Alberto Consani SpA filed Critical Alberto Consani SpA
Publication of EP0638500A1 publication Critical patent/EP0638500A1/de
Application granted granted Critical
Publication of EP0638500B1 publication Critical patent/EP0638500B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2269—Cradle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
    • 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
    • B65H19/30—Lifting, transporting, or removing the web roll; Inserting 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
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4172—Handling web roll by circumferential portion, e.g. rolling on circumference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/112—Means for varying cross-section
    • B65H2404/1121—Means for varying cross-section for changing diameter
    • B65H2404/11211—Means for varying cross-section for changing diameter by inflation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/235—Cradles

Definitions

  • the present invention relates to a re-reeling machine for sheet material, such as paper or the like.
  • the re-reeling machines to which the present invention refers unwind large rolls of sheet material particularly paper, to produce a plurality of logs, of a pre-established diameter, that are subsequently cut cross-wise to the desired length, to obtain rolls of toilet paper, kitchen paper or similar products.
  • the logs are normally made up on a tubular cardboard core.
  • the three rollers turn at a constant speed, which is normally that at which the paper is fed, during winding of the log, whilst for discharge of the finished log and introduction of the new core the most widely used techniques rely on large variations in speed between the rollers. These different roller speeds are necessary to allow translation of the core between the insertion rollers and translation of the log between the discharge rollers.
  • the aim of the invention is to eliminate the above-mentioned drawbacks, related to the variations in angular speed (r.p.m) of the rollers.
  • the aim is achieved by providing for at least one of the three winding rollers to have a variable diameter.
  • the speed of the three rollers can be maintained constant, obtaining a variation in the peripheral speed of at least one of them, as a result of the variation in its own external diameter, thus causing translation of the core in the winding cradle and/or discharge from the cradle of the made up log.
  • the roller that works both during introduction of the new core and during discharge of the log is conveniently of variable diameter, and this diameter is decreased during the "exchange" stage, that is during core introduction-log discharge.
  • the variation in roller diameter is interlocked with a control logic which is responsible for its correct operation during the work cycle.
  • the variation in roller diameter is conveniently obtained by dividing its mantle into a plurality of longitudinal sectors or tiles that can be moved radially by means of kinematic mechanisms situated inside the roller, which is hollow, from a lowered or closed position, corresponding to the smallest diameter of the roller, to a raised or open position, corresponding to the largest diameter of the roller.
  • a continuous or discontinuous elastic stocking is conveniently provided to close the longitudinal slits that occur in the roller mantle when the tiles are in the raised position.
  • the kinematic operating mechanism of the expansion sectors in the roller mantle comprises a bar disposed coaxially to the roller, on which two threads are provided, right and left respectively, for engagement of corresponding sleeves connected by means of connecting rods to a supporting rod of a respective tile.
  • a relative rotation between the threaded bar and the roller produces an axial movement bringing the sleeves, closer together or further apart, and consequently a radial movement of the longitudinal sectors or tiles of the roller mantle.
  • W indicates a sheet material, in particular a web of paper, which, coming from the direction indicated by the arrow F, reaches the first roller 1 of a group of three winding rollers 1, 2, 3.
  • the web W is wound onto tubular cores C, possibly previously spread with adhesive, that come from a special loading channel (not shown) and are inserted into the winding cradle through the pair of rollers 1, 2.
  • the roller 2 can, for example, be supported by a pair of rocking arms 4, which allow it to move in the direction indicated by the double arrow F1, to regulate the distance between the mantles of rollers 1 and 2.
  • the third roller commonly known as pressure roller, exerts pressure on the log being made up R ( Figure 2) and is supported in a per se known manner, by a pair of rocking arms 20, so that it can move to follow the increase in diameter of the reel.
  • the rollers 1, 2, 3 are all made to rotate at a constant speed, generating the same peripheral speed, in relation to their diameter, this being the speed at which the sheet material W is fed during the winding phase.
  • rollers 1, 2, 3 are provided for at least one of the rollers 1, 2, 3 to have a variable diameter, that is having its mantle constructed in such a way as to grow larger or smaller in order to generate different peripheral speeds under the different conditions, whilst the angular roller speed remains unchanged.
  • variable diameter roller is roller 2, which cooperates with the counter-roller 1 during insertion of the core C and with the pressure roller 3 during discharge of the log R.
  • roller 1 or roller 3 or both may have a variable diameter.
  • roller 1 or roller 3 or both may have a variable diameter.
  • variable diameter roller(s) will be chosen accordingly.
  • the variation in diameter of the roller 2 (and of any other rollers) and hence of the relative peripheral speed, will be managed by a control logic that will take into account all parameters relating to the production that is to be carried out.
  • the roller 2 comprises a tubular body 5 and an outer mantle 6, axially integral with each other.
  • the mantle 6 is divided into a plurality of longitudinal sectors, or tiles, 7, each supported by a series of spindles 8 that are guided to slide radially in corresponding radial holes 9 in the hollow body 5 of the roller.
  • the inner ends of each series of spindles 8 are fixed to a corresponding longitudinal rod 10 disposed inside the roller.
  • a bar 11 is provided for movement of the sectors 7 and is disposed coaxially with the inside of the roller 2, and integral with it.
  • the bar 11 has a pair of threads 12, 13, right and left respectively, with which the respective threaded sleeves 14, 15, mounted on the bar 11, engage. In this way, rotation in one direction of the bar 11 relative to the roller 2 causes the sleeves 14, 15 to draw apart axially (upper half of Figure 3), while rotation in the other direction of the bar 11 brings said sleeves closer axially (lower half of Figure 3).
  • the axial movement of the sleeves 14, 15 is converted into a radial movement of the sectors or tiles 7 by means of pairs of connecting rods 16, 17 that connect the sleeves 14, 15 to the opposite ends of each respective supporting rod 10 of a corresponding sector 7.
  • suitable inclined guides can be provided between the rods 10 or the sectors 7 and the axially moving sleeves 14, 15.
  • the relative rotation between the threaded bar 11 and the roller 2 can be obtained with a drive motor used as an electric axle and fitted directly on the bar 11, or with a drive motor connected to the bar with reduction units and transmissions, or with an epicycloidal timer, or in any other manner.
  • kinematic mechanisms can be provided to obtain radial movement of the longitudinal sectors 7 of the roller mantle 6.
  • longitudinal slits 18 When the sectors 7 are in the raised position, i.e. in the condition in which the roller has the greatest diameter, longitudinal slits 18 would appear in the mantle 6 ( see in particular the right side of Figure 4). These slits can be closed by means of longitudinal strips of elastic material 19, fixed to the respective ends of adjacent sectors 7, as shown schematically in Figure 4. Alternatively, an elastic stocking that completely encloses the roller mantle can be used.

Landscapes

  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Unwinding Webs (AREA)

Claims (13)

  1. Wickelmaschine für Bandförmiges Material, bestehend aus einer Dreiergruppe von Walzen (1, 2, 3) mit parallelen Achsen, die ein Bett bilden, in dem das Bandförmigesmaterial (W) um einen Kern (C) gewickelt wird, der zwischem einen Paar (1,2) der genannten Walzen eingeführt wird, während die Achse einer Walze (3) der Dreiergruppe beweglich ist, um die Vergrößerung des Durchmessers der sich bildenden Rolle und den Auswurf der fertigen Rolle (R) zu ermöglichen, dadurch gekennzeichnet, daß der Durchmesser mindestens einer der genannten Walzen (1, 2, 3) zumindest in der Aufrollphase und in der Phase des Austausches veränderlich ist, das heißt während der Einführung des neuen Kerns (C) und des Auswurfs der fertigen Rolle (R).
  2. Wickelmaschine gemäß Anspruch 1, dadurch gekennzeichnet, daß von den Walzen (1, 2 ,3) jene Walze (2), die mit den anderen Walzen (1,3) zur Einführung des Kerns (C) in das Bett bzw. zum Auswurf der fertigen Rolle (R) zusammenwirkt, einen veränderlichen Durchmesser aufweist.
  3. Wickelmaschine gemäß Anspruch 2, dadurch gekennzeichnet, daß die genannte Walze (2) mit veränderlichem Durchmesser während der Austauschphase einen kleineren Durchmesser und während der Aufrollphase einen größeren Durchmesser annimmt.
  4. Wickelmaschine gemäß einem beliebigen der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß sich die genannten Walzen (1, 2, 3) alle mit konstanter Geschwindigkeit drehen.
  5. Wickelmaschine gemäß einem beliebigen der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die peripheren Geschwindigkeiten der genannten Walzen (1, 2, 3) während der Aufrollphase der Rolle (R) konstant und für alle Walzen gleich sind und mit der Zufuhrgeschwindigkeit des Folienmaterials (W) übereinstimmen, während in der Austauschphase zumindest die periphere Geschwindigkeit einer der Walzen (1, 2, 3) sich von der Geschwindikeit der anderen Walzen unterscheidet.
  6. Wickelmaschine gemäß einem beliebigen der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß zumindest eine Walze des genannten Paars (1, 2) eine bewegliche Achse aufweist, um den Mittenabstand zwischen den Walzen zu ändern.
  7. Wickelmaschine gemäß Anspruch 1, dadurch gekennzeichnet, daß die Änderung des Durchmessers zumindest einer der genannten Walzen (1, 2, 3) dadurch erhalten wird, daß der Mantel (6) der betreffenden Walze in mehrere Längsabschnitte (7) unterteilt ist, die sich in bezug auf den Körper (5) der Walze radial verschieben können und somit eine abgesenkte oder zurückgezogene Stellung, d.h. eine kleineren Durchmesser, oder eine erhöhte oder ausgedehnte Stellung, d.h. einen größeren Durchmesser, annehmen können.
  8. Wickelmaschine gemäß Anspruch 7, dadaurch gekennzeichnet, daß der genannte Körper (5) der Walze (1, 2 oder 3) innen hohl ist und Vorrichtungen (8-17) für die radiale Bewegung der genannten Abschnitte (7) enthält.
  9. Wickelmaschine gemäß Anspruch 8, dadurch gekennzeichnet, daß die genannten Vorrichtungen für die radiale Bewegung der Abschnitte (7) eine zur Walze (1, 2, 3) koaxiale Stange umfassen, die rechts und links mit jeweils einem Gewinde (12, 13) versehen ist, das mit einer Muffe (14 bzw.15) verbunden ist, deren axiale Verschiebung über Verbindungselemente (8, 10, 16, 17) in eine radiale Bewegung der genannten Abschnitte (7) umgewandelt wird.
  10. Wickelmaschine gemäß Anspruch 9, dadurch gekennzeichnet, daß diese Abschnitte (7) jeweils von einer Reihe von Spindeln (8) getragen werden, die in radialen, im genannten hohlen Körper (5) der Walze vorgesehenen Öffnungen (9) geführt werden und deren innere Enden an einer entsprechenden Längsstange (10) befestigt sind, deren Enden mittels Pleuelstangen (16, 17) mit den genannten Muffen (14,15) verbunden sind.
  11. Wickelmaschine gemäß einem beliebigen Anspruch der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß elastische Längsstreifen (19) vorgesehen sind, die zwischen nebeneinander liegenden Abschnitten (7) angeordnet sind und dazu dienen, die Längsspalten (18) abzudecken, die im Mantel (6) der Walze (1, 2 ,3) mit veränderlichem Durchmesser entstehen, wenn die genannten Abschnitte (6) sich in gehobener Stellung befinden.
  12. Wickelmaschine gemäß einem beliebigen Anspruch der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß der Mantel (6) der Walze (1, 2, 3) mit einer elastischen Hülle überzogen ist.
  13. Wickelmaschine gemäß einem beliebigen Anspruch der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Änderung des Durchmessers mindestens einer Rolle mit veränderlichem Durchmesser (1, 2 ,3) mit einer Steuerlogik verriegelt ist
EP94111550A 1993-08-03 1994-07-25 Wickelmaschine für bandförmiges Material Expired - Lifetime EP0638500B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT93MI001768A IT1264558B1 (it) 1993-08-03 1993-08-03 Ribobinatrice di materiale in foglio
ITMI931768 1993-08-03

Publications (2)

Publication Number Publication Date
EP0638500A1 EP0638500A1 (de) 1995-02-15
EP0638500B1 true EP0638500B1 (de) 1997-05-14

Family

ID=11366773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94111550A Expired - Lifetime EP0638500B1 (de) 1993-08-03 1994-07-25 Wickelmaschine für bandförmiges Material

Country Status (5)

Country Link
EP (1) EP0638500B1 (de)
AT (1) ATE153000T1 (de)
DE (1) DE69403148T2 (de)
ES (1) ES2102739T3 (de)
IT (1) IT1264558B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5901918A (en) * 1997-07-03 1999-05-11 Valmet-Karlstad Ab Apparatus and method for winding paper
US5845868A (en) * 1997-07-03 1998-12-08 Valmet-Karlstad Ab Apparatus and method for winding paper
US6110093A (en) * 1998-07-06 2000-08-29 Heidelberger Druckmaschinen Ag Variable diameter roller
ITFI20130046A1 (it) * 2013-03-06 2014-09-07 Perini Fabio Spa "macchina ribobinatrice e metodo per la produzione di rotoli di materiale nastriforme"
US10442649B2 (en) 2016-03-04 2019-10-15 The Procter & Gamble Company Surface winder for producing logs of convolutely wound web materials
US10427902B2 (en) 2016-03-04 2019-10-01 The Procter & Gamble Company Enhanced introductory portion for a surface winder
US10427903B2 (en) 2016-03-04 2019-10-01 The Procter & Gamble Company Leading edge device for a surface winder
CN106809679A (zh) * 2017-02-13 2017-06-09 赵杰 一种具有多对轮自动抽芯及芯杆自动复位功能的纸卷复卷机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791659A (en) * 1972-11-17 1974-02-12 Champion Int Corp Expandable chuck or mandrel
IT1240907B (it) * 1991-07-16 1993-12-21 Perini Fabio Spa Metodo per la produzione di rotoli o logs di materiale nastriforme,e macchina per l'esecuzione di detto metodo
FR2686077B1 (fr) * 1992-01-14 1995-07-07 Clecim Sa Mandrin cylindrique expansible d'enrouleuse ou de derouleuse.

Also Published As

Publication number Publication date
DE69403148D1 (de) 1997-06-19
ATE153000T1 (de) 1997-05-15
IT1264558B1 (it) 1996-10-02
ITMI931768A0 (it) 1993-08-03
DE69403148T2 (de) 1997-12-18
ES2102739T3 (es) 1997-08-01
EP0638500A1 (de) 1995-02-15
ITMI931768A1 (it) 1995-02-03

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