EP1431218B1 - Machine de bobinage ou de debobinage et procédé pour la production de bobines d'un matériau en feuille continue sur un mandrin - Google Patents

Machine de bobinage ou de debobinage et procédé pour la production de bobines d'un matériau en feuille continue sur un mandrin Download PDF

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Publication number
EP1431218B1
EP1431218B1 EP02425775A EP02425775A EP1431218B1 EP 1431218 B1 EP1431218 B1 EP 1431218B1 EP 02425775 A EP02425775 A EP 02425775A EP 02425775 A EP02425775 A EP 02425775A EP 1431218 B1 EP1431218 B1 EP 1431218B1
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EP
European Patent Office
Prior art keywords
winding
spindle
web material
roller
roll
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
EP02425775A
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German (de)
English (en)
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EP1431218A1 (fr
Inventor
Giuseppe Acciari
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A Celli Nonwovens SpA
Original Assignee
A Celli Nonwovens SpA
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Filing date
Publication date
Application filed by A Celli Nonwovens SpA filed Critical A Celli Nonwovens SpA
Priority to AT02425775T priority Critical patent/ATE303966T1/de
Priority to EP02425775A priority patent/EP1431218B1/fr
Priority to DE60206060T priority patent/DE60206060D1/de
Priority to US10/737,391 priority patent/US20040144879A1/en
Priority to JP2003419206A priority patent/JP2004196552A/ja
Publication of EP1431218A1 publication Critical patent/EP1431218A1/fr
Application granted granted Critical
Publication of EP1431218B1 publication Critical patent/EP1431218B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00Changing the web roll
    • B65H19/22Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238The web roll being driven by a winding mechanism of the nip or tangential drive type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00Changing the web roll
    • B65H19/22Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28Attaching the leading end of the web to the replacement web-roll core or spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/414Winding
    • B65H2301/41419Starting winding process
    • B65H2301/41421Starting winding process involving electrostatic means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/414Winding
    • B65H2301/4148Winding slitting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/417Handling or changing web rolls
    • B65H2301/4171Handling web roll
    • B65H2301/4173Handling web roll by central portion, e.g. gripping central portion
    • B65H2301/41734Handling web roll by central portion, e.g. gripping central portion involving rail
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00Parts for holding the handled material
    • B65H2405/40Holders, supports for rolls
    • B65H2405/42Supports for rolls fully removable from the handling machine
    • B65H2405/422Trolley, cart, i.e. support movable on floor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00Specific machines
    • B65H2408/20Specific machines for handling web(s)
    • B65H2408/23Winding machines
    • B65H2408/236Pope-winders with first winding on an arc of circle and secondary winding along rails

Definitions

  • the present invention relates to a machine for producing rolls of web material wound around winding spindles.
  • Machines of this type are used for example to produce rolls or reels of paper, tissue-paper, non-woven fabric and other web or sheet material.
  • Winding machine is usually intended as a machine which receives the web material from a production machine upstream and winds it to form a roll or reel of large diameter.
  • Rewinding machine is usually intended as a machine which receives web material from a roll or reel with a large diameter and rewinds it into rolls of a smaller diameter. In both cases the web material may be cut longitudinally in continuous strips, with which several rolls are formed in parallel simultaneously on the same spindle.
  • the term roll or reel is intended, in the context of this document, both as a whole roll or reel and as a series of coaxial rolls placed side by side on the same winding spindle.
  • spindle must be- generically intended as a spindle made of metal or another suitable material, or an assembly composed of a rod or spindle, positioned and clamped on which are one or more cores in cardboard or another material, typically non-electrically conductive material.
  • the invention relates to a peripheral winding or rewinding machine, that is in which the roll being formed is maintained in rotation by one or more moving elements in contact with the external surface of the roll.
  • the element or elements which transmit, through friction, the rotating movement to the roll being formed are composed of one or more winding rollers or cylinders.
  • the invention also relates to a new method for producing, in particular with a peripheral winding procedure, rolls or reels of web material.
  • one of the critical aspects is constituted by the initial winding phase, that is the operation through which the initial free end of the web material, produced by the interruption of said material, starts to be wound forming the first turn around a new winding spindle.
  • the initial free end of the web material is made to adhere to the winding spindle (or more precisely to tubular cores made of cardboard or another suitable material, such as plastic or the like, positioned and clamped on an inner metal spindle) by applying an adhesive.
  • This makes it necessary to provide a gluing unit which applies the adhesive to the cores or to the spindle prior to insertion in the winding zone.
  • the presence of adhesive in winding or rewinding machines represents a considerable disadvantage as, in addition to the costs deriving from the consumption of adhesive, it inevitably soils the various mechanical parts of the machine and its products.
  • the presence of adhesive is unacceptable in some types of reels, such as those destined for producing hygiene articles such as medical products, diapers and sanitary towels.
  • the initial free end of the web material is made to adhere to the winding spindle with an electrostatic system.
  • This technique charges the web material electrostatically immediately prior to cutting, producing a difference in electric potential between the web material and the winding spindle. This difference in potential attracts the web material towards the spindle causing the former to adhere to the latter and thus commencing winding of a new roll.
  • peripheral type rewinding or winding machines the application of this technology is more difficult, for the reasons set forth below.
  • Peripheral rewinding machines are currently preferred for several reasons, linked both to the improved operation of these machines and to their higher production level. Examples of rewinding machines to which the present invention may be applied are described in the patent USA 4.422.588, the publication WO-A- 99/02439 and the publication WO-A- 00/61480.
  • Electrostatic bars are used to electrostatically charge the web material, that is electrically conductive bars connected to an electric voltage source. These are commonly employed to ensure correct start of winding of the new roll on winding machines that do not have rollers in contrast with the winding spindle (as is typically the case in central winding or rewinding machines), or that have a single roller contrasting the reel or winding spindle.
  • the winding or rewinding machine When the winding or rewinding machine is constructed so as to present one or more rollers in contact with the spindle in the initial phase to form a new roll, there is the risk of the web material not being wound correctly around the spindle. If, in fact, the initial end of the web material during its first turn (that is while forming the first turn of material around the spindle) is in contact both with the winding spindle and the contrast roller in the same point, it may detach from the spindle and adhere more firmly to the contrast roller.
  • the contrast or winding rollers in contact with the winding spindle and with the roll being formed, have larger dimensions than the spindle and, unlike the spindle, are not coated with non-conductive material, while the winding cores, made of cardboard or another non-electrically conductive material, are normally positioned on the spindle.
  • the contrast or winding rollers have a greater capacitance than the spindle.
  • the web material tends to adhere, with its initial free end, to the contrast or winding roller instead of to the spindle.
  • the machine must be stopped and the web material which has wound around the roller must be removed before restarting production. This causes a waste of material and considerably long machine idle times with consequent loss of production.
  • a rewinding or winding machine according to the preamble of claim 1 and a rewinding or winding method according to the preamble of claim 16 are described in US-A-2002/0179769.
  • a further winding machine and method is described in CH-A-672113.
  • the object of the present invention is to produce a winding or rewinding machine which does not have the aforesaid disadvantages and allows each roll to be initially wound around the winding spindle easily and securely, by using electrostatic systems to make the initial free end of the web material adhere to the winding spindle, or to the winding cores present on the spindle.
  • the machine according to the invention comprises in combination: at least a roller in contact with the winding spindle in the initial phase of winding the web material around the spindle; a cutting element to cut the web material at the end of winding a roll and form an initial free end for winding a subsequent roll around a new winding spindle.
  • at least an electrostatic bar is provided to electrostatically charge the web material, and the roller in contact with the spindle is made at least partially in non-electrically conductive material.
  • spindle is intended as a whole as the assembly composed of the actual rod or spindle and by any tubular core positioned and temporarily clamped on the spindle and around which the web material is wound. Therefore, roller in contact with the spindle is generically intended as the roller which comes into contact with the surface of the actual spindle when it has no tubular core positioned on it, or the roller which comes into contact with the external surface of the tubular core positioned on the rightly called spindle, which remains inside the tubular cores.
  • the electrical capacitance of the roller is reduced drastically, so that the initial free end produced by cutting the web material adheres securely to the winding spindle, or to the cores positioned on the spindle, allowing secure and reliable start of winding and avoiding the risk of the material being wound around the roller instead of around the spindle.
  • non-conductive material which covers, with an adequate thickness, the cylindrical surface of the roller
  • the non-conductive material may for example be a synthetic resin reinforced with glass fibers or other non-conductive fibers, in Kevlar or the like, although it is also possible to use different materials, as a function of the characteristics of mechanical resistance and the dimensions that the roller must have.
  • the roller in contact with the winding spindle may be a winding roller that remains in contact with the roll being formed around the spindle substantially for the entire winding cycle of the roll.
  • a winding roller that remains in contact with the roll being formed around the spindle substantially for the entire winding cycle of the roll.
  • one of the two winding rollers may be made of non-conductive material, or at least coated with this material on its cylindrical surface.
  • the electrostatic bar and the cutting element are mounted on an assembly oscillating around the axis of rotation of a first of said winding rollers, with at least the second of said winding rollers being made at least partially of non-electrically conductive material.
  • the machine may be a winding machine, or a so-called winder or reeler, provided with a support for the winding spindle, and on which the winding spindle and the roll being formed around said spindle are maintained in rotation by said winding roller, around which the web material is driven.
  • a machine with this configuration may be provided with a moving assembly carrying the cutting element and the electrostatic bar, said assembly performing a rotating or oscillating movement around the axis of the winding roller to insert a winding spindle, cut the web material and fasten the web material around said winding spindle.
  • a machine of this type may cut the web material and commence winding without interrupting feed of the web material, that is at a more or less constant and in any case continual feed speed.
  • the machine comprises a support for the winding spindle, a winding roller in contact with the roll being formed, to maintain the roll in rotation while it is being formed, a moving assembly carrying the electrostatic bar, the cutting element and the roller in contrast with the spindle, in non-electrically conductive material.
  • This roller may be provided with a movement in relation to the moving assembly which draws it towards and moves it away from the winding spindle.
  • the object of the invention is also to provide a winding method which makes it possible, in a reliable and secure manner, to start winding the various rolls on the winding spindles using an electrostatic system to make the initial free end adhere to the winding spindle.
  • the invention relates to a method for producing rolls of web material wound around a winding spindle, comprising the steps of:
  • the roller made of non-conductive material may be a winding roller, said rolls being wound with a peripheral winding system.
  • Figs. 1 and 2 show a first application of the underlying concept of the invention to a so-called rewinding machine and more specifically a peripheral rewinding machine of the start-stop type.
  • the rewinding machine receives from a reel with a large diameter, indicated with B, a web material N which is rewound on rolls with a smaller diameter, indicated with R.
  • the rewinding machine comprises two winding rollers 3, 5 which define a winding cradle 7, in which the rolls R are formed. After these rolls have been formed they are unloaded onto a carriage indicated with 9, which picks up each roll and transfers it towards an unloading zone.
  • the web material N is fed into the winding cradle passing through a nip between the two winding rollers 3, 5, under which, in a per se known manner, an assembly of cutting blades 11 are positioned to divide the web material N into individual longitudinal strips, each of which is wound onto a respective core made of cardboard or another suitable material, positioned axially on a metal spindle.
  • the roll R may be formed of a plurality of rolls of a shorter axial length aligned with one another along the axis of the winding spindle.
  • Fig. 2 shows a metal spindle 13 and a winding core 15 mounted axially on the spindle.
  • the metal spindle 13 is expandable to clamp the various cores 15 on it in the desired position. It is also possible for a single winding core to be positioned on a single spindle 13 and in this case the web material N is not divided into longitudinal strips by the blades of the assembly 11.
  • the rewinding machine 1 has just finished winding a roll R, which has been unloaded onto the carriage 9, while the web material N has not yet been cut to start winding a subsequent roll.
  • a unit or assembly indicated as a whole with 17 is provided, hinged around the axis 3A (Fig. 2) of the winding roller 3.
  • the assembly 17, as shown in the detail in Fig. 2, comprises a transverse cutting element, indicated with 19, operated by a piston-cylinder actuator 20. Positioned adjacent to the transverse cutting element 19 is an electrostatic bar 21, connected to a high voltage source, not shown.
  • the voltage of the bar 21 may typically reach 60 kV.
  • a guiding roller 23, and a curvilinear section bar 25 are positioned on the assembly 17.
  • the still integral web material N which extends between the completed roll R and the spindle 13 inserted in the winding cradle 7 to start winding the new roll, partially encircles the assembly 17, as it is driven around the guiding roller 23 and around the section bar 25.
  • a portion of web material is thus held in tension between the edge of the section bar 25 and the nipping point between the spindle 13 and the winding roller 3.
  • This portion of web material N is charged electrostatically by the electrostatic bar 21 and cut by the transverse cutting element 19.
  • the electrostatic bar can start to electrostatically charge the web material before its feed is interrupted, so that an adequately long portion of material is electrostatically charged.
  • the final free end which is formed by cutting remains on the finished roll R, while the initial free end must be fastened to the spindle 13, or more precisely to the tubular cores 15 positioned and clamped on this, to start winding the new roll.
  • electrostatic charges have been applied to the web material by the electrostatic bar 21.
  • the initial free end is made of non-electrically conductive material, typically in resin reinforced by glass fibers.
  • the spindle 13 is metal and is electrically grounded, that is at zero potential, the free end of the web material adheres to the spindle through electrostatic effect and is drawn by the rotatory movement of the spindle to form the first turn. Once the first turn has been formed, the web material is firmly fastened to the spindle.
  • the winding roller 3 may be made, as is traditionally the case, of electrically conductive metal. This is possible as the specific position in which the initial free end of the web material is produced means there is no risk of its adhering to the roller 3 instead of the winding spindle 13.
  • Figs. 3, 4 and 5 show a winding machine or reeling drum to form rolls or reels R of web material N, for example fed directly from a production machine.
  • the machine indicated as a whole with 41, comprises a pair of supporting surfaces 43 resting on which time by time with its ends is a winding spindle 45, around which a roll R of web material N is formed.
  • the spindle around which the roll or reel is being formed is retained by two pairs of rollers 47 carried by slides 49 which translate on guides parallel to the supporting surfaces 43 to retain the winding spindle 45 and the roll being formed in contact with a motor-driven winding roller 51 which rotates around a fixed axis of rotation 51A.
  • the web material N to be wound is driven around the winding roller 51, which also transmits, through friction, movement to the roll being formed.
  • winding spindles 45 positioned and clamped on which are tubular cores in cardboard or another non-electrically conductive material, are found standing-by above the winding zone and are inserted one by one in the zone in which winding commences by a mechanism illustrated in Figs. 3 and 4.
  • This mechanism comprises an oscillating unit 55 hinged around an axis 57 and controlled by a piston-cylinder actuator 59.
  • the unit 55 picks up, with the aid of a gripping jaw 61, the individual spindles 45 and, through an oscillating movement around the axis 57, brings them adjacent to the winding roller 51 and resting on the surfaces 43.
  • the spindles may also be used without tubular cores positioned on them.
  • it is advantageous to use a roller in non-conductive material although the spindle is conductive and therefore designed to attract the electrically charged free end of the web material.
  • these spindles normally have smaller dimensions and masses to the adjacent winding or driving rollers, and therefore have a lower electrical capacitance if these rollers are made of metal.
  • An assembly 67 oscillates around an axis parallel to the axis 51 A of the winding roller 51, controlled by an electric motor 62, with crown gear and pinion transmission 63, 65.
  • the assembly 67 carries: a transverse cutting element 69, an electrostatic bar 71 and a contrast roller 73.
  • the contrast roller 73 is mounted on a pair of sides 75 hinged to the assembly 67 and oscillating in relation to this controlled by a piston-cylinder actuator 77.
  • a second piston-cylinder actuator 79 controls the movement of the transverse cutting element 69.
  • the assembly 67 also supports a pair of guiding rollers 80 and 81.
  • the spindle 45 on which the roll is being formed is held in contact with the winding roller 51 by the slide 49 and the rollers 47 mounted on this.
  • a new spindle 45, on which the next roll will be formed, is in the meantime positioned on the unit 55.
  • the roll R is almost completed, it is moved away from the winding roller 51, while the new spindle engaged by the unit 55 is transferred, by a clockwise oscillating movement around the axis 57 of the unit 55, to the zone in which winding commences, in contact with the surface of the winding cylinder 51.
  • the assembly 67 is made to oscillate counter-clockwise around its axis of oscillation to be inserted between the new spindle 45 lowered by the unit 55 and the roll R just formed.
  • the oscillating movement of the assembly 67 causes a loop of web material N to form, driven around the new spindle 45 and the guiding rollers 80 and 81.
  • the unit 55 and the assembly 67 are moved without requiring to stop feed of the web material, although slowing of the feed speed is not excluded.
  • the contrast roller 73 When the assembly 67 is in the cutting position, to produce - through the transverse cutting element 69 - the initial free end of the new roll, the contrast roller 73 is brought into contact with the new spindle 45, so that the web material N is nipped on one side between the winding roller 51 and the newly inserted spindle 45 and on the other side between this spindle and the contrast roller 73.
  • the electrostatic bar 71 electrostatically charges the web material before it is cut by the cutting element 69 operated by the piston-cylinder actuator 79. Once the element 69 has performed the transverse cut on the web material, the final free end is wound on the finished roll R, while the initial free end will start to wind around the new spindle 45. Initial winding is guaranteed by electrostatic attraction between the web material electrostatically charged by the bar 71 and the metal part of the spindle 45, which is at zero potential.
  • this is made of non-electrically conductive material.
  • the electric capacitance of the spindle 45 is thus sufficient to guarantee adhesion of the free end of the web material produced by the cut performed by the element 69.
  • the assembly 67 may be removed from the winding zone through a clockwise oscillating movement and the spindle 45 may be engaged at its ends by rollers 47 carried by the slides 49 on the sides of the machine. Winding continues in these conditions until completion of the subsequent roll.
  • the machine represented in Figs. 3 and 5 is also provided with a longitudinal cutting assembly, indicated schematically with 78, to divide the web material N into a series of longitudinal strips narrower in width to the overall width of the web material.
  • a longitudinal cutting assembly indicated schematically with 78, to divide the web material N into a series of longitudinal strips narrower in width to the overall width of the web material.
  • the various strips are wound on tubular winding cores positioned beside one another on the single spindle 45.
  • the roll or reel B will actually be formed of a series of rolls of a shorter axial length positioned side by side.
  • Figs. 6, 7 and 8 show a modified embodiment of a reeling drum or winding machine which, analogously to the machine shown in Figs. 3, 4 and 5, is capable or performing the exchange phase, i.e. unloading the completed roll, inserting the new spindle and starting to wind a new roll on said spindle without interrupting feed of the web material.
  • a supporting surface 101 is provided on which a winding spindle 103 rests to form a roll or reel R around it.
  • the roll or reel R may actually be constituted by a plurality of rolls with a shorter axial length positioned on the same spindle.
  • Rollers 105 carried by oscillating arms 107 hold the roll being formed R in contact with a winding roller 109, around which the web material to be wound, indicated with N, is fed.
  • a longitudinal cutting assembly 111 is provided to divide the web material into continual longitudinal strips if so required.
  • An assembly indicated as a whole with 115 rotates around the axis 109A of the winding roller 109, and is used to cut the web material and start winding a new roll around a new winding spindle 103 inserted in the winding zone by the pickup system 113.
  • the assembly 115 is shown in detail in Fig. 8. It comprises a transverse cutting element constituted by a blade 117 mounted oscillating around an axis 119. The oscillating movement is controlled by a piston-cylinder actuator 121, the cylinder of which is mounted oscillating by a bracket 123 on the oscillating assembly 115.
  • Mounted at the sides of the axis of oscillation 119 of the blade 117 are two guiding rollers 125 and 127, between which a curved section bar 129 is positioned.
  • An electrostatic bar 131 is mounted under the guiding roller 125.
  • the machine shown in Figs. 6 and 8 performs the exchange, i.e. replacement of a complete roll or reel R with a new winding spindle 103, in the following way.
  • the assembly 115 rotates clockwise from the position in Fig. 7 to position itself between the web material N being fed to the roller 109 and the roller itself.
  • the clockwise rotatory movement continues until reaching the angular position in Fig. 6, before the unit 113 moves from the position in Fig. 7 to the position in Fig. 6 with clockwise oscillation. Insertion of the new spindle 103 in the position in Fig. 6, in which winding of a new roll commences, thus occurs subsequently to movement of the assembly 115 beyond the insertion position of the new spindle 103.
  • the web material is cut and transferred to the new spindle.
  • a loop of web material N is formed around the assembly 115, being driven on the two guiding rollers 125, 127 and on the curved section bar 129.
  • the electrostatic bar 131 starts to electrostatically charge the web material.
  • Adhesion through electrostatic effect of the initial free end to the spindle instead of the winding roller 109 is guaranteed by the fact that in this case the winding roller 109 is made of non-electrically conductive material.
  • the electrical capacitance of the winding spindle 103 is thus sufficient for the web material to adhere to it, notwithstanding the presence of any winding cores in non-conductive material positioned on the metal spindle 103 or in any case notwithstanding the low electric capacitance of the spindle.
  • the assembly 115 Upon completion of adhesion of the initial free end to the new winding spindle 103, the assembly 115 starts rotation in the clockwise direction again, to return to the position in the layout in Fig. 7, thus completing a rotation of 360°, while the roll formed is removed through oscillation of the arms 107.
  • the new winding spindle with the new roll being formed is inserted in the space thus made available.
  • This spindle is then engaged by the rollers 105 as soon as they have been freed of the completed reel and are returned with a counter-clockwise rotation of the arms 107.
  • the pickup system 113 moves upwards with counter-clockwise oscillation to engage a new winding spindle which will replace the one inserted previously after the new roll has been wound.
  • a winding roller 109 made at least partly of non-electrically conductive material makes it possible to cut the web material in a much more advantageous position to the one in machines of this type currently employing electrostatic systems to make the free end adhere to the new spindle.
  • the trajectory of the web material extends around the roller 109, around a guiding roller in an analogous position to the roller 125 in Fig.
  • This known configuration is particularly unfavorable due to the great number of guiding rollers and the twisted path which the web material must follow before being cut, with consequent excessive stress of the material.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Basic Packing Technique (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Claims (19)

  1. Machine de bobinage ou de débobinage pour enrouler un matériau de bande continue (N) et former un rouleau (R) autour d'une broche de bobinage (13 ; 45 ; 103) comprenant : au moins un rouleau (5 ; 73 ; 109) en contact avec ladite broche de bobinage dans la phase initiale de bobinage du matériau de bande continue autour de la broche ; un élément de coupe transversale (19 ; 69 ; 117) pour découper le matériau de bande continue à l'extrémité de l'enroulement d'un rouleau et pour former une extrémité libre initiale pour enrouler un rouleau consécutif autour d'une nouvelle broche de bobinage, ladite extrémité libre initiale étant introduite entre ledit rouleau et ladite broche de bobinage ; au moins une barre électrostatique (21 ; 71 ; 131) pour charger électrostatiquement le matériau de bande continue ; caractérisée en ce qu'au moins la surface cylindrique dudit rouleau (5 ; 73 ; 109) en contact avec la broche est réalisée en un matériau conducteur non électrique.
  2. Machine selon la revendication 1, caractérisée en ce que ledit rouleau (5 ; 73 ; 109) comprend une paroi cylindrique réalisée complètement en un matériau conducteur non électriquement.
  3. Machine selon la revendication 1 ou 2, caractérisée en ce que ledit rouleau est un rouleau de bobinage (5 ; 109) qui reste en contact avec le rouleau (R) en cours de formation autour de ladite broche sensiblement pour la totalité du cycle de bobinage du rouleau.
  4. Machine selon la revendication 1, 2 ou 3, caractérisée en ce qu'elle comprend deux rouleaux de bobinage (3, 5) formant un berceau de bobinage (7) dans lequel ladite broche de bobinage (13) est introduite et sur lequel est formé ledit rouleau, au moins l'un (5) desdits rouleaux de bobinage étant formé au moins partiellement en matériau électriquement non conducteur.
  5. Machine selon la revendication 4, caractérisée en ce que ladite barre électrostatique (21) et ledit élément de coupe transversale (19) sont montés sur un ensemble (17) oscillant autour de l'axe du premier (3) desdits rouleaux de bobinage (3, 5), au moins le second (5) desdits rouleaux de bobinage étant réalisé au moins partiellement en un matériau non conducteur électriquement.
  6. Machine selon la revendication 4 ou 5, caractérisée en ce que le matériau de bande continue est alimenté dans le berceau de bobinage (7) en passant le long d'un circuit qui traverse une pince ou emprise formée desdits deux rouleaux de bobinage (3, 5).
  7. Machine selon la revendication 3, caractérisée en ce qu'elle comprend un support (43 ; 101) pour ladite broche de bobinage (45 ; 103), ladite broche de bobinage et ledit rouleau étant formés autour de ladite broche et maintenus en rotation par ledit rouleau de bobinage (51 ; 109) autour duquel le matériau de bande continue est entraíné.
  8. Machine selon la revendication 7, caractérisée par un ensemble mobile (67) portant ledit élément de coupe transversale (69) et ladite barre électrostatique (71), ledit ensemble oscillant autour d'un axe parallèle à l'axe de rotation dudit rouleau de bobinage (51) pour couper le matériau de bande continue et fixer le matériau de bande continue autour de ladite broche de bobinage.
  9. Machine selon la revendication 7, caractérisée par un ensemble mobile (115) portant ledit élément de coupe transversale (117) et ladite barre électrostatique (131), ledit ensemble effectuant une rotation complète autour d'un axe parallèle à l'axe de rotation dudit rouleau de bobinage (109) pour couper le matériau de bande continue et fixer le matériau de bande continue autour de ladite broche de bobinage.
  10. Machine selon la revendication 8 ou 9, caractérisée en ce que ledit ensemble mobile (67 ; 115) porte une paire de rouleaux de guidage (80, 81 ; 125, 127).
  11. Machine selon la revendication 10, caractérisée en ce que ledit élément de coupe transversale (117) est positionné entre les rouleaux de guidage (125, 127) portés par ledit ensemble mobile (115).
  12. Machine selon la revendication 1 ou 2, caractérisée en ce qu'elle comprend un support (43) pour ladite broche de bobinage (45), un rouleau de bobinage (51) en contact avec ledit rouleau pour maintenir le rouleau en rotation pendant sa formation, un ensemble mobile (67) portant ladite barre électrostatique (71), ledit élément de coupe (69) et ledit rouleau (73) étant formés au moins partiellement en un matériau non conducteur électriquement.
  13. Machine selon la revendication 12, caractérisée en ce que ledit rouleau (73), formé au moins partiellement en un matériau non conducteur électriquement, est doté d'un mouvement en relation à l'ensemble mobile qui le rapproche et l'éloigne de la broche de bobinage.
  14. Machine selon la revendication 13, caractérisée en ce que ledit ensemble mobile (67) porte un premier élément d'actionnement (79) pour faire fonctionner ledit élément de coupe transversale (69) et un second élément d'actionnement (77) pour rapprocher ledit rouleau (73) et l'éloigner de la broche de bobinage.
  15. Machine selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que ledit rouleau, formé au moins partiellement en un matériau non conducteur électriquement, présente une surface cylindrique constituée par un matériau synthétique renforcé.
  16. Procédé pour produire des rouleaux de matériau de bande continue enroulés autour desdits broches de bobinage comprenant les phases de :
    bobinage d'un premier rouleau de matériau de bande continue autour d'une première broche de bobinage ;
    amenée d'une seconde broche de bobinage en contact avec le matériau de bande continue, ledit matériau de bande continue étant chargé électrostatiquement ;
    coupe du matériau de bande continue à proximité de ladite seconde broche de bobinage pour former une extrémité libre initiale et une extrémité libre finale de matériau de bande continue ;
    bobinage de l'extrémité libre initiale du matériau de bande continue autour de ladite seconde broche et démarrage du bobinage d'un second rouleau, ledit matériau de bande continue étant retenu à proximité de ladite extrémité libre initiale, entre ladite seconde broche de bobinage et un rouleau ;
       caractérisé en ce qu'au moins la surface cylindrique dudit rouleau est réalisée en un matériau non conducteur électriquement.
  17. Procédé selon la revendication 16, caractérisé en ce que ledit rouleau en matériau non conducteur électriquement est un rouleau de bobinage, lesdits rouleaux étant enroulés avec un système d'enroulement périphérique.
  18. Procédé selon la revendication 16 ou 17, caractérisé par la coupe du matériau de bande continue avant l'introduction de l'extrémité libre entre ladite seconde broche et ledit rouleau en un matériau non conducteur électriquement.
  19. Procédé selon la revendication 16 ou 17, caractérisé par l'engagement du matériau de bande continue entre ladite seconde broche de bobinage et ledit rouleau avant la coupe du matériau de bande continue.
EP02425775A 2002-12-17 2002-12-17 Machine de bobinage ou de debobinage et procédé pour la production de bobines d'un matériau en feuille continue sur un mandrin Expired - Lifetime EP1431218B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT02425775T ATE303966T1 (de) 2002-12-17 2002-12-17 Wickelmaschine und verfahren zur herstellung von rollen aus bahnförmigem material auf einer hülse
EP02425775A EP1431218B1 (fr) 2002-12-17 2002-12-17 Machine de bobinage ou de debobinage et procédé pour la production de bobines d'un matériau en feuille continue sur un mandrin
DE60206060T DE60206060D1 (de) 2002-12-17 2002-12-17 Wickelmaschine und Verfahren zur Herstellung von Rollen aus bahnförmigem Material auf einer Hülse
US10/737,391 US20040144879A1 (en) 2002-12-17 2003-12-16 Winding or rewinding machine for producing rolls of web material around a winding spindle and relative winding method
JP2003419206A JP2004196552A (ja) 2002-12-17 2003-12-17 巻取りスピンドルの周囲でウエブ材料のロールを製造する巻取りまたは巻き返し装置及び、それに関連する巻取り方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425775A EP1431218B1 (fr) 2002-12-17 2002-12-17 Machine de bobinage ou de debobinage et procédé pour la production de bobines d'un matériau en feuille continue sur un mandrin

Publications (2)

Publication Number Publication Date
EP1431218A1 EP1431218A1 (fr) 2004-06-23
EP1431218B1 true EP1431218B1 (fr) 2005-09-07

Family

ID=32338247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425775A Expired - Lifetime EP1431218B1 (fr) 2002-12-17 2002-12-17 Machine de bobinage ou de debobinage et procédé pour la production de bobines d'un matériau en feuille continue sur un mandrin

Country Status (5)

Country Link
US (1) US20040144879A1 (fr)
EP (1) EP1431218B1 (fr)
JP (1) JP2004196552A (fr)
AT (1) ATE303966T1 (fr)
DE (1) DE60206060D1 (fr)

Cited By (1)

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DE202010012238U1 (de) * 2010-09-06 2011-12-08 Nepata Gmbh Vorrichtung zum Zuschnitt von folienartigen Medien

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FR2865722B1 (fr) * 2004-02-02 2006-12-01 Monomatic Sa Dispositif d'enroulement a deux rouleaux d'entrainement pour machine a enrouler en continu et procede d'enroulement avec regulation de l'effort d'application des rouleaux d'entrainement
US7237743B2 (en) * 2004-07-16 2007-07-03 Metso Paper, Inc. Sheet windup starter
DE102004049329A1 (de) * 2004-10-09 2006-04-20 Windmöller & Hölscher Kg Vorrichtung und Verfahren zum Transport von Materialbahnen und zum Festlegen derselben auf einer Gegenlage
ITFI20050108A1 (it) * 2005-05-23 2006-11-24 Perini Fabio Spa Macchina ribobinatrice e metodo per la produzione di rotoli di materiale nastriforme
BRPI0621882B1 (pt) 2006-07-17 2019-03-26 A. Celli Nonwovens S.P.A Sistema automatizado para a produção e manejo de rolos de material de manta e robô destinado especialmente para o dito sistema
US20110162989A1 (en) * 2010-01-06 2011-07-07 Ducker Paul M Ultra thin laminate with particulates in dense packages
CN104310104B (zh) * 2014-10-23 2016-04-27 浙江得伟纺织科技有限公司 一种卷布一体机

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US4852820A (en) * 1986-12-04 1989-08-01 Gottlieb Looser Winding method and apparatus
CH672113A5 (en) * 1986-12-04 1989-10-31 Gottlieb Looser Method of winding web
US5383622A (en) * 1993-05-05 1995-01-24 The Kohler Coating Machinery Corporation Web transfer mechanism and method for a continuous winder
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JP4585136B2 (ja) * 2001-03-29 2010-11-24 メッツォペーパージャパン株式会社 巻取ロール押さえ装置および長尺材巻取り方法
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DE202010012238U1 (de) * 2010-09-06 2011-12-08 Nepata Gmbh Vorrichtung zum Zuschnitt von folienartigen Medien

Also Published As

Publication number Publication date
DE60206060D1 (de) 2005-10-13
EP1431218A1 (fr) 2004-06-23
ATE303966T1 (de) 2005-09-15
JP2004196552A (ja) 2004-07-15
US20040144879A1 (en) 2004-07-29

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