EP0747308B1 - Apparatus for winding lightweight web - Google Patents

Apparatus for winding lightweight web Download PDF

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Publication number
EP0747308B1
EP0747308B1 EP96830316A EP96830316A EP0747308B1 EP 0747308 B1 EP0747308 B1 EP 0747308B1 EP 96830316 A EP96830316 A EP 96830316A EP 96830316 A EP96830316 A EP 96830316A EP 0747308 B1 EP0747308 B1 EP 0747308B1
Authority
EP
European Patent Office
Prior art keywords
reel
blocks
rolls
centres
paper
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
EP96830316A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0747308A1 (en
Inventor
Marco Celli
Piero Celli
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.)
A Celli SpA
Celli SpA
Original Assignee
A Celli SpA
Celli 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 A Celli SpA, Celli SpA filed Critical A Celli SpA
Publication of EP0747308A1 publication Critical patent/EP0747308A1/en
Application granted granted Critical
Publication of EP0747308B1 publication Critical patent/EP0747308B1/en
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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • 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
    • 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
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers

Definitions

  • the invention relates to an apparatus for winding lightweight web material to form rolls.
  • the invention relates to an apparatus according to the preamble of claim 1.
  • Such an apparatus is known from EP-A-0640 544.
  • the object of the invention is to improve the known apparatus in order to solve the problem of how to produce regular, non-ovalized reels with uniform and limited compacting of the paper at all distances from the reel axis, in plant for winding lightweight paper web and forming reels intended for paper processing plant - for forming rolls of toilet paper, kitchen rolls, paper towels and the like, or other products, such as nonwovens, and anywhere where control of the reel is critical - or for equivalent plants.
  • Another object of the invention is to provide a compact apparatus capable of working even at very high speeds.
  • the apparatus of the present invention includes driven mating centres for the mandrel or tubular core on which the paper is to be wound and a pair of carrier rolls on which the developing reel rests, carriages or blocks moving up and down generally vertical guides and carrying the mating centres and their drive motors; rigid mechanical means, such as driven threaded columns, for slowly raising said carriages or blocks; and a programme for the raising of the developing reel and for a consequent limiting of the load of the reel on the rolls, in order to give a generally constant load at the points of contact between the developing reel and the two carrier rolls.
  • the mating centres are driven in such a way as to provide a speed of rotation that is dependent upon the instantaneous diameter of the developing reel and upon the speed of the feed of the paper (or the like) being wound, and a torque not exceeding a preset limit.
  • the drives for raising the blocks and for the mating centres are programmed as a function of the apparent thickness of the paper of the web to be wound and of the progressively accumulated length of this web on the developing reel.
  • the apparatus may comprise, for the two threaded columns for raising the carriages or blocks of the mating centres, a slow drive for winding and a fast drive for auxiliary manoeuvres.
  • Both the guides for the blocks and the threaded columns are advantageously of circulating-ball-bearing construction, in order to ensure the agility of manoeuvres even under heavy loads.
  • 1 indicates a frame for the reel B forming station, which is followed by a unit for collecting the completed reels and passing them on.
  • the lower part of the structure of the frame 1 contains two adjacent rolls 3 which provide a seat on which the developing reel B rests and is rolled, the reel being formed about a core or mandrel M which initially is in position M1 in Fig. 1 and gradually rises as the reel is formed with the feed of paper web N as the diameter of the reel gradually increases.
  • equipment sketched in the drawing and of a type known per se is used to transfer the reel onto an inclined rolling surface 5 for removal and transfer to dwelling positions B1, B2 etc.
  • the two rolls 3 are driven in some suitable manner by motors 7 that cause the rolls to rotate with a peripheral speed equal to the feed speed of the web N.
  • the weight of a developing reel would normally be borne entirely by the rolls 3, causing a changing degree of compression of the various layers of turns as a function of the progressively increasing diametrical dimension of the reel and hence of the steadily increasing load pressing down on the rolls and compressing the layers of paper.
  • This condition is a precursor of other problems also, such as in particular a tendency of the reel to ovalize and other manifestations which may have repercussions arising from the great weight of the rotating reel and the possibility of vibration and other problems that can result from an imbalance of the load relative to the reel axis.
  • the reel is at least in part supported not by the rolls 3 but by mating centres that engage the core on which the reel is forming and are preferably also driven.
  • the posts 1A of the frame 1 and along the parallel auxiliary posts 1B are generally vertical guides 9 (which may be made in the form of circulating-ball-bearing guides) for the movement of two blocks 12 that travel on said guides and that carry the mutually opposing mating centres 14 designed to engage in rotation with the core M on which the reel B is formed.
  • the blocks 12 are generally provided with their own motors 16, which are designed to turn their respective mating centres 14, the motors 16 being correlated for their rotation both with the peripheral speed of the rolls 3 and with the instantaneous height of the blocks 12, which is a function of the progressively increasing diameter of the developing reel B.
  • a respective threaded column 18 is provided which is suitably guided by its own brackets such as 19 acting also as section ends. Coupled to each column 18 are corresponding nuts attached to the blocks 12 so that the blocks move as their respective threaded columns 18 are rotated.
  • the two threaded columns 18 are continued upwards by a section 18A to arrive at a system for driving said threaded columns 18, 18A, which is common to both threaded columns, these advantageously being of circulating-ball-bearing type.
  • the columns 18, 18A pass into gearboxes 20, which are connected to each other by a horizontal transmission bar 22; said bar 22 traverses the frame 1 parallel to the axes of the rolls 3 in order to transmit the motion simultaneously to both threaded columns 18.
  • the bar 22 and hence the threaded columns 18, 18A can be driven by a slow drive indicated generally at 24 (see also Figs. 4 and 5) and by a fast drive indicated generally at 26 (see also Figs. 6 and 7).
  • the slow drive 24 comprises a geared-down motor 24A, with a dog clutch 24B whose teeth can skip when the driven side is moved faster than the output shaft of the geared-down motor, and a belt drive 24C to the transmission bar 22.
  • the fast drive 26 comprises a motor 26A and a transmission 26B which turns the bar 22 at the opposite end from the drive 24C.
  • the clutch 24B allows the components situated between the bar 22 and the output shaft of the geared-down motor 24A to be disengaged, so that said motor is not influenced by the greater speed imposed by the system 26.
  • the slow drive system 24 is coordinated by a programme which influences the various controls as a function of the instantaneous diameter of the developing reel B; consequently said drive 26 can turn the threaded columns 18, 18A in such a way as gradually to raise the blocks 12 in step with the increasing diameter of the developing reel, so that the load of the reel on the rolls 3 is limited to a preset value that is below a certain limit.
  • the programme causes the mating centres in the mandrel or core of the developing reel to rotate with an angular speed suitable for the instantaneous diametrical dimension of the developing reel. In this way the rigid assembly by which the developing reel is supported and moved is synchronized.
  • the programme can be run in particular so that the mating centres are rotated to produce a constant torque in addition to the speed of rotation that is dependent upon the instantaneous diameter of the developing reel.
  • the programme for controlling the threaded columns 18 is therefore very easy to work out.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Sanitary Thin Papers (AREA)
  • Basic Packing Technique (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Wrappers (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Packaging Of Special Articles (AREA)
EP96830316A 1995-06-07 1996-06-04 Apparatus for winding lightweight web Expired - Lifetime EP0747308B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI950130 1995-06-07
IT95FI000130A IT1278698B1 (it) 1995-06-07 1995-06-07 Apparecchiatura per l'avvolgimento di nastro leggero

Publications (2)

Publication Number Publication Date
EP0747308A1 EP0747308A1 (en) 1996-12-11
EP0747308B1 true EP0747308B1 (en) 2000-02-02

Family

ID=11351304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96830316A Expired - Lifetime EP0747308B1 (en) 1995-06-07 1996-06-04 Apparatus for winding lightweight web

Country Status (8)

Country Link
EP (1) EP0747308B1 (el)
AT (1) ATE189443T1 (el)
DE (1) DE69606461T2 (el)
DK (1) DK0747308T3 (el)
ES (1) ES2143170T3 (el)
GR (1) GR3032699T3 (el)
IT (1) IT1278698B1 (el)
PT (1) PT747308E (el)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7293736B2 (en) 2001-01-16 2007-11-13 Fabio Perini S.P.A. Rewinding machine to rewind web material on a core for rolls and corresponding method of winding

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1308270B1 (it) 1999-04-12 2001-12-10 Celli Spa Impianto e metodo per la preparazione di mandrini ed anime diavvolgimento per macchine ribobinatrici o simili
US8757533B2 (en) * 2002-02-28 2014-06-24 Kimberly-Clark Worldwide, Inc. Center/surface rewinder and winder
DE60217314T2 (de) 2002-06-25 2007-08-30 A. Celli Nonwovens S.P.A., Porcari Umwickelmaschine mit Hilfszylindern und dazugehöriges Wickelverfahren
DE10253518B4 (de) * 2002-11-16 2005-08-18 Kampf Gmbh & Co Maschinenfabrik Mehrfach-Wickelmaschine
DE102006000055A1 (de) 2006-02-09 2007-08-16 Voith Patent Gmbh Rollenwickelvorrichtung
CA2657510A1 (en) 2006-07-17 2008-01-24 A. Celli Nonwovens S.P.A. Automated system for producing and managing rolls of web material and robot intended particularly for said system
DE102008053249A1 (de) * 2008-10-25 2010-04-29 Robert Bosch Gmbh Verfahren zur Steuerung einer Bearbeitungsmaschine mit angetriebenen Achsen
ITFI20130249A1 (it) 2013-10-18 2015-04-19 Celli Paper S P A A "asta di avvolgimento per bobine di materiale nastriforme e macchina ribobinatrice utilizzante detta asta"

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306547A (en) * 1965-04-02 1967-02-28 Keelavite Hydraulics Ltd Winding apparatus
US4025009A (en) * 1975-01-20 1977-05-24 Johns-Manville Corporation Blanket or sheet winding apparatus
IT1216462B (it) * 1988-02-26 1990-03-08 Formia Nuova Srl Arrotolatore di tessuto di tipo tangenziale con dispositivo di controllo del carico.
DE3836367C1 (el) * 1988-10-26 1989-12-14 J.M. Voith Gmbh, 7920 Heidenheim, De
GB2268476A (en) * 1992-07-08 1994-01-12 Shimizu Machinery Co Ltd Winding webs.
EP0754640B1 (de) * 1993-08-24 1999-01-27 Beloit Technologies, Inc. Wickelmaschine zum Wickeln von Bahnen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7293736B2 (en) 2001-01-16 2007-11-13 Fabio Perini S.P.A. Rewinding machine to rewind web material on a core for rolls and corresponding method of winding
US7775476B2 (en) 2001-01-16 2010-08-17 Fabio Perini S.P.A. Rewinding machine to rewind web material on a core for rolls and corresponding method of winding

Also Published As

Publication number Publication date
GR3032699T3 (en) 2000-06-30
ES2143170T3 (es) 2000-05-01
ITFI950130A0 (it) 1995-06-07
EP0747308A1 (en) 1996-12-11
DE69606461T2 (de) 2000-06-21
ITFI950130A1 (it) 1996-12-07
DE69606461D1 (de) 2000-03-09
IT1278698B1 (it) 1997-11-27
DK0747308T3 (da) 2000-06-13
PT747308E (pt) 2000-07-31
ATE189443T1 (de) 2000-02-15

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