EP2205513B1 - Aufwicklungsverfahren und aufwicklungsgerät zur anwendung dieses verfahrens - Google Patents

Aufwicklungsverfahren und aufwicklungsgerät zur anwendung dieses verfahrens Download PDF

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Publication number
EP2205513B1
EP2205513B1 EP08834938.6A EP08834938A EP2205513B1 EP 2205513 B1 EP2205513 B1 EP 2205513B1 EP 08834938 A EP08834938 A EP 08834938A EP 2205513 B1 EP2205513 B1 EP 2205513B1
Authority
EP
European Patent Office
Prior art keywords
log
glue
paper web
line
making
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.)
Not-in-force
Application number
EP08834938.6A
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English (en)
French (fr)
Other versions
EP2205513A2 (de
Inventor
Alessandro De Matteis
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.)
MTC Macchine Trasformazione Carta SRL
Original Assignee
MTC Macchine Trasformazione Carta SRL
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 MTC Macchine Trasformazione Carta SRL filed Critical MTC Macchine Trasformazione Carta SRL
Priority to EP08834938.6A priority Critical patent/EP2205513B1/de
Publication of EP2205513A2 publication Critical patent/EP2205513A2/de
Application granted granted Critical
Publication of EP2205513B1 publication Critical patent/EP2205513B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B65H19/286—Attaching the leading end of the web to the replacement web-roll core or spindle by applying adhesive to the web
    • 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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/29—Securing the trailing end of the wound web to the web roll
    • 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
    • B65H2301/414—Winding
    • B65H2301/4144—Finishing winding process
    • B65H2301/41441—Finishing winding process and blocking outer layers against falling apart
    • B65H2301/41442—Specified by the sealing medium sealing used
    • B65H2301/414421—Glue or hot-melt
    • 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 an improved rewinding method for making logs of paper from a paper web and that is used, for example, for the production of rolls of toilet paper, rolls of all purpose tissue paper for household use, non woven fabric, paper industrial rolls and the like.
  • the invention relates to an improved rewinding machine that carries out this method.
  • Rewinding machines where the winding step takes place in a special winding zone that comprises an upper roller, a lower roller and a pressing roller.
  • EP1232980 a core of cardboard, which is located on a special movable support cradle, is brought into contact with the upper winding roller and is therefore dragged into a winding zone, wherein glue is previously spread on the surface of the tubular core, to let the paper web to remain stuck to the core and start winding the log.
  • glue distribution devices of different kind can be used.
  • nozzles connected to the structure of the rewinding machine can be used, which spray a measured amount of glue on the core before that it enters the movable cradle and start winding.
  • Other devices can be also used, such as glue distributing brushes or blades.
  • a cutting step follows of the paper web along special tear lines.
  • a special separation finger is provided brought into rotation at an angular speed higher than the winding roller speed, about which the paper web adheres causing therefore the paper to be torn.
  • a further increase of rotation speed difference, between lower roller and pressure roller, causes then the exit of the formed roll.
  • a special cutting blade creates a clean separation cut of the web without any need of auxiliary devices such as the separation finger above described.
  • the formed log leaves the rewinding machine and is sent to a machine adapted to glue the free end.
  • the methods of gluing this free end are various, and in any case an additional gluing section of the machine is needed.
  • the free end of the formed log is stretched on a support plane.
  • gluing systems spread glue for all the length of the free end sticking the latter on the final log.
  • the free end gluing unit, as well as the gluing step of the starting end of the log create relevant problems.
  • the free end cannot be precisely stretched on a support plane, being this responsive to the direction of the air jets. Therefore the final closure is often faulty, with presence of large wrinkles and, in particular, of free end portions folded on them.
  • the glue is applied directly on the core in the cradle by means of two gluing guns.
  • the synchronization of the two gluing guns can spread glue on the core in predetermined instants such that the rotation of the core same transfers the glue by contact on the web of paper upstream and downstream of the desired tearing line.
  • this system is not very reliable, since a slip of the core and therefore a subsequent loss of rotational speed of the core determines an incorrect distribution of the glue causing, for example, the free end not to stick to the roll, or in particular, a faulty start of the new winding cycle.
  • a rewinding machine with a gluing device having a core introduction system, a paper cutting system, and a system to close the exiting log and to engage a new the core with the paper to start a new log.
  • the gluing device is similar to a printing unit, by a printing roller that receives the glue from a transfer roller, which is associated to a glue supplier, and that transfers the glue on the paper passing on a support roller. This way, on the paper a pattern of glue can be transferred of whichever shape.
  • the printing roller is an actual printer, it is possible that the roller prints on the paper desired signs, transferred on the roller print by printing means.
  • the glue can be colored in order to highlight the printed signs.
  • EP 1 702 873 A2 is considered as closest prior art.
  • a feature of the present invention to provide an improved rewinding machine that substantially prevents residual glue from entering between mechanical moving parts of the machine, thus jeopardizing a correct operation and damaging the machine, as it may occur in the rewinding machines of prior art.
  • an improved rewinding machine for making logs of sheet or web material, for example used for the production of rolls of toilet paper, rolls of all purpose tissue paper for household use, non woven fabric, paper industrial rolls and the like, comprising:
  • said means for making a transversal division line in the paper web are selected from the group comprised of:
  • said start up means comprises means for introducing a core in said winding cradle.
  • said gluing means and said means for making a transversal division line are arranged in coincidence with each other in order to apply the measured amount of glue bridging said line.
  • both the tail end of the formed log and the head end of the new log comprise points spread of glue. Therefore, it is possible to carry out in a single step the cut and the application of the glue, both for closing the tail end on the formed log, and for causing the head end to stick on a core and start winding a new log.
  • said gluing means and said means for making a transversal division line are arranged in coincidence with each other in such a way to apply the measured amount of glue downstream of said line.
  • the measured amount of glue is applied only downstream of the tear or clean cut transversal line, i.e. on the portion of the paper web corresponding to the tail end of the formed log, to eventually cause said tail end to stick on said formed log, without the need of an auxiliary gluing machine to apply glue on the tail of the log.
  • said gluing means and said means for making a transversal division line are arranged in coincidence with each other in order to apply the measured amount of glue upstream from said line.
  • the measured amount of glue is applied only upstream from the tear or clean cut transversal line, i.e. on the portion of the paper web corresponding to the head end of the log being formed, and the head end is caused to stick on a core to start winding a new log without the need of an auxiliary gluing step in the cradle, when introducing the core or beforehand on the core same.
  • the measured amount of glue is applied in a selective way only either upstream, or only downstream, or bridging the tear or clean cut transversal line, i.e. on the portion of the paper web corresponding only to either the tail end of the formed log or the head end of the log being formed or both portions.
  • means are provided for measuring the unwound length of said web from a paper roll, said means for measuring providing a signal for driving said gluing means when a measured length of paper web has been unwound.
  • said gluing means and said means for making a transversal division line, in particular a blade are movable towards/away from said paper web operated by an actuator selected from the group comprised of:
  • the actuator is advantageously of cam type, and can be selected from the group comprised of: a single actuator for said pad and said blade, with a delayed actuation of the blade with respect to the actuation of the pad; two independent actuators for both the blade and the pad.
  • two pads that are arranged respectively one upstream and one downstream of the blade, they can comprise a single actuator, in order to apply the glue on both sides of the blade, or two independent actuators, in order to apply the glue either upstream, or downstream, or bridging the blade in a selective way.
  • program means can be provided for activating selectively said actuators.
  • an improved rewinding machine of a paper web for making a log in particular for making rolls of toilet paper, towel paper rolls or non woven fabric for household use, industrial rolls and the like, comprises:
  • the measured amount of glue is applied in a selective way by said gluing means so that when a clean cut is made said glue is applied only either upstream, or only downstream, or bridging the clean cut transversal line, i.e. on the portion of the paper web corresponding to either the tail end of the formed log or the head end of the log being formed or both portions.
  • a method for winding a paper web for making a log comprises the steps of:
  • said step of application of said measured amount of glue on a portion of said web is carried out on at least one among the following portions:
  • said step of starting the production of a new log comprises a step of introducing a core in said winding cradle.
  • a rewinding apparatus machine of a paper web 1 for making a log 2a comprises a feed roller 3 of web 1 and, downstream of it, a winding cradle 4, in which the production of log 2a is carried out for winding web 1 about a core 20.
  • cradle 4 is supplied into cradle 4 by suitable introduction means, for example a loading unit that draws the cores 20 from a chute guide, not shown in the figures.
  • suitable introduction means for example a loading unit that draws the cores 20 from a chute guide, not shown in the figures.
  • a log can be formed without a core. In this case, the web is wound on itself to start forming a new log that then is wound in cradle 4.
  • Cradle 4 comprises a upper winding roller 5, a lower winding roller 6 and a pressure roller 7, which follows the growth of log 2a with the object of assuring its continuous contact with winding rollers 5 and 6, for controlling its progressive diameter growth.
  • a perforation roller 11 is mounted that acts in combination with a counter-roller 12, to provide a plurality of transversal tear lines 15' on paper web 1 such that a user can separate it into a plurality of panels 16.
  • a gluing device is provided, in particular a double pad 10' arranged bridging a cutting blade 10", and is mounted in coincidence on a support roller 10 so that, when cutting blade 10" is moved, at the same time gluing device 10' works, applying a predetermined amount of glue either upstream, or downstream, or bridging a new tear or clean cut transversal line 15 caused by blade 10".
  • Fig. 5' represents a cross sectional view thereof.
  • a perforating blade can be provided, adapted to make a tear line 15 that is different from tear lines 15' and possibly with low resistance against tearing in the winding cradle.
  • the web before entering the winding cradle 4, as well known, for example when a core 20b is put in, the web is torn forming a front end 1a and a tail end 1b at this new tear line 15, weaker than tear line 15'.
  • a tearing device can be provided between the gluing device 10', for example a padding that brakes the paper, tearing at a tear line 15' previously made at rollers 11 and 12.
  • support roller 10 in synchronism with upper winding roller 5, when making the clean cut or tear line 15, has a speed corresponding to that of paper web 1, in order to execute a clean cut or tear line on paper web 1, when a complete log is wound, which is formed by a desired number of panels 16 of web 1 having tear lines 15'.
  • the speed of support roller 10 is kept fixed at a speed identical to the rotation of the upper winding roller 5.
  • the clean cut or tear line 15 of paper web 1 generates, thus, two free ends corresponding to tail end 1a for formed log 2a and head end 1b for new log 2b.
  • a gluing roller 51 is provided, on which a layer of glue is distributed by a doctor blade 56 that is equipped with, for example, a duct (not shown) through which the glue is supplied.
  • gluing roller 51 is movable from a first position, where roller 51 is distant by support roller 10 ( Fig. 1 ), to a second position, where roller 51 is next to support roller 10 same for laying the glue 55 on pads 10' that then spread glue on paper web 1 ( Fig. 5 ).
  • gluing roller 51 can be operated towards/away from support roller 10 by a hydraulic, or pneumatic, or electric actuator.
  • pads 10' have a withdrawing movement from gluing roller 51 and the paper, whereas gluing roller 51 has fixed axis.
  • both tail end 1a of the formed log and head end 1b of the new log comprise points spread of glue. Therefore, it is possible to provide with a single step the cut and the application of the glue, both for closing tail end 1b on the formed log, and in order to cause said head end to stick on a core and start winding a new log.
  • the final result is a high reduction of the time for making each log in addition to a reduction of the costs.
  • the glue 55 can be applied only downstream of the transversal tear line or clean cut line 15, i.e. on the portion of paper web 1 corresponding to tail end 1b of the formed log, so that it is possible to close the log, once withdrawn the formed log 2a, without the need of a auxiliary gluing machine for gluing the tail end of the log.
  • the glue 55 is applied only upstream from the transversal tear line or clean cut line 15, i.e. on the portion of paper web 1 corresponding to head end 1a of the log being formed, the adhesion of the new core is obtained without the need of an auxiliary gluing device in cradle 4 or on core 20b same.
  • the glue can be applied in a selective way only either upstream, or only downstream, or bridging the transversal tear line or clean cut line 15.
  • FIG. 5' shows a cross sectional view of an actuating device 90 that moves the blade same.
  • this device has an actuator (not shown) pivoted eccentrically to a connecting rod 61 that rotates about an axis 61' and moves an actuating bar 62.
  • Actuating bar 62 is connected in turn to a lever 66 on which blade 10" is mounted. This way, the translational movement of actuating bar 62 moves lever 66 that rotates about a fulcrum 66', thus moving blade 10" from a rest position to a cutting position.
  • device 90 has a joint 62' between actuating bar 62 and connecting rod 61 that allows, through a plurality of bearings 72, to transfer to actuating bar 62 only translational movements in two opposite directions, as indicated in Fig. 5' by arrow 70.
  • Bearings 72 do not transfer to actuating bar 62 the rotational movement of connecting rod 61 that would cause vibrations and shocks to actuating bar 62.
  • a further unit 65 is present having bearings 75 opposite to each other that ensure a precise and stable movement to actuating bar 62 and to lever 66. Therefore, by synchronizing the speed of support roller 10 with the speed of support 5 and by setting the distance between a tear line or clean cut and a successive tear line or clean cut, it is possible to provide a precise separation without working defects.
  • Figure 5 " shows a diagrammatical view of the actuating device 90 described in Fig. 5' and of an actuating mechanism 80 that operates the two pads 10' contemporaneously to the step of creating a division line 15. Both are mounted integral to support roller 10 and allow carrying out, as above described, the cut and gluing step of paper web 1.
  • mechanism 80 which is diagrammatically shown in Fig. 5 ", is a crank-connecting rod mechanism that moves a linking element 81 integral to the two pads 10'.
  • blade 10" is located in a rest position and pads 10' receive glue from roller 51, whereas, in a second instant, blade 10" is in cutting position and pads 10' act contemporaneously to apply the glue on paper web 1.
  • the actuator is advantageously of cam type, and can be selected from the group comprised of: a single actuator for pad 10' and blade 10", with a delayed actuation of the blade with respect to the actuation of the pad 10', or two independent actuators for blade 10" and for pad 10'.
  • pads 10' that are arranged respectively one upstream and one downstream of the blade, they can comprise a single actuator, in order to apply the glue on both sides of the blade, or two independent actuators, in order to apply the glue either upstream, or downstream, or bridging the blade in a selective way.
  • a rewinding machine is shown alternative to that of Figs. from 1 to 5, where a web 101 for making a log 102a is associate to a feed roller 103 of web 101 and, downstream, to a winding cradle 104 in which log 102a is formed by winding paper web 101 about a core 120.
  • the latter is supplied into cradle 104 by suitable introduction means, for example a loading unit that draws the cores 120 from a chute guide, not shown in the figures.
  • the cradle 104 comprises an upper winding roller 105, a lower winding roller 106 and a pressure roller 107.
  • the latter follows the growth of log 2 with the task of assuring its continuous contact with winding rollers 105 and 106, controlling its diameter growth.
  • a perforating roller 111 is provided that acts in combination with a counter-roller 112 to make a plurality of transversal tear lines 115' on paper web 101 for a plurality of panels 116.
  • a cutting roller 110 is provided between the feed roller 103 and the upper winding roller 105.
  • the latter can work in combination with the upper winding roller 105 to cause blade 110" making a clean cut on paper web 101 as soon as a number of panels 116 corresponding to a complete log has been unwound.
  • Cutting paper web 101 generates two free ends, corresponding to tail end 101a for formed log 102a and head end 101b for new log 102b.
  • cutting roller 110 has not a blade, but a tearing device 110"
  • the separation two logs 102a and 102b is obtained at determined tear lines 115'. This is achieved, as well known, by adjusting the relative speed of the winding rollers 105, 106 and 107. Even in this case, the separation made by blade 110" at tear line 115' generates a tail end 101a for formed log 102a and a head end 101b for new log 102b being formed.
  • means are provided 150 for application of a measured amount of glue 155 on a determined portion of paper web 101.
  • the gluing means 150 can, for example, provide a gluing roller 151 on which a measured amount of glue is laid by a doctor blade 156, for example equipped with a duct 157 through which the glue is supplied.
  • means can be provided for measuring the paper web 101 unwound from a supply roll, not shown in the figure.
  • the means for measuring is operatively connected to the cutting means, in order to operate them to make tear lines 115' at a predetermined length, and to cutting roller 110, if this is present, to allow separating two consecutive logs, and to the gluing means 150, in order to operate it for applying a determined amount of glue at predetermined tear lines 115.
  • the gluing means 150 are provided movable from a first position, where the gluing roller 151 is distant from paper web 101 ( Fig. 6 ), to a second position, where roller 151 is next to paper web 101 same for applying a layer of glue 155 at predetermined portions of web 101 ( Fig. 7 , 10 , 13 , 16 , 16 , 18 ).
  • gluing roller 151 can be operated in a movement towards/away from paper web 101 by a hydraulic, or pneumatic, or electric actuator.
  • the layer of glue 155a is applied by gluing roller 151 only at portion 118 of paper web 101 arranged downstream of tear lines 115' or cut or tear line 115.
  • tear line 115' corresponds to the tear line at which cutting roller 110 cuts paper web 101 it into a tail end 101a of log 102a and a head end 101b of the next log 102b.
  • cut or tear line 115 is new and independent from line 115', and represents an actual division between tail end 101a of log 102a and head end 101b of next log 102b.
  • tail end 101a of log 102a has a layer of glue 155a for closing formed log 102a.
  • a layer of glue 153 can be previously spread, for example by a nozzle 152 arranged between core feeding means 120 and cradle 104.
  • core 102b with layer of glue 153 thereon is put into cradle 104 and then approached to paper web 101 when head portion 117 that is upstream from the tear line 115' reaches it.
  • the approach of the core 102a to paper web 101 can be obtained, for example, by a rotation about its axis 119 of the cradle 104, operated by an actuating rod 109.
  • roller 151 applies a layer of glue 155 in the only portion 117 of paper web 101 arranged upstream from tear line 115'.
  • Portion 117 of paper web 101 on which the layer of glue 155b is applied is, in this case, head end 101b, which is created by tear line 115' or by cut or tear line 115 made by cutting roller 110 ( Fig. 11 ).
  • the layer of glue 155b allows head end 101b to engage with core 120b put in cradle 104 when it approaches to winding roller 105, like it has been described for the previous example. This way, paper web 101 is started winding about core 120b, to form new log 102b.
  • tail end 101a of each log at the exit of the rewinding machine can be then stuck to the relative log by a gluing machine of traditional type arranged downstream of the rewinding machine, not shown in the figures.
  • roller 151 can be also operated for applying a layer of glue 155 both on portion 117 and on portion 118 of paper web 101 at tear or cut lines 115'.
  • roller 151 is firstly approached to paper web 101 at portion 118 where a first layer of glue 155a is applied, and secondly it is withdrawn 150a (dotted line) at tear line 115', and again approached to paper web 101 at portion 117 to apply a second layer of glue 155b.
  • both tail end 101a of formed log 102a and head end 101b of new log 102b, obtained from the cut or tear line on paper web 101 by cutting roller 110 ( Fig. 14 ) through blade or tool 110" have respective layers of glue 155a and 155b. This allows both to end formed log 102a and to start winding new log 102b, thus avoiding the use of other gluing systems.
  • glue 155 both on portion 117 and on portion 118 of paper web 101
  • roller 151 applies the layer of glue 155 bridging the tear lines 115', or bridging a position where clean cut 115 is made by blade 110". Even in this case it is possible both to cause tail end 101a to stick on formed log 102a and to starting winding new log 102b on next core 120b by the engagement on it of head end 101b.
  • FIG. 18 an exemplary embodiment is shown that provides arranging gluing roller 151 at cradle 104. As shown the figure, the layer of glue 155 can be applied by roller 151 downstream of tear line 115.
  • the improved rewinding machine as above described assists remarkably the production process for the log of paper. In fact, it avoids the need of using expensive and bulky gluing machines that are usually arranged downstream of and upstream from the machine to provide respectively the application of glue on the cores and on the end portions of the formed log.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Sanitary Thin Papers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (14)

  1. Aufwickelvorrichtung, um aus einer Papierbahn eine Rolle herzustellen, insbesondere zur Herstellung von Toilettenpapierrollen, Küchenpapierrollen oder von Vliestüchern für den Haushaltsgebrauch, von Industriepapierrollen und dergleichen, folgendes umfassend:
    - Zufuhrmittel zum Zuführen der Papierbahn in einer Zufuhrrichtung,
    - Mittel zum Herstellen einer quer verlaufenden Trennlinie in der Papierbahn zwischen einem hinteren Ende der gerade gebildeten Rolle und einem vorderen Ende für eine neu zu bildende Rolle,
    - Startmittel zum Beginnen der Herstellung einer neuen Rolle,
    - eine Wickelaufnahme, die dem Startmittel nachgelagert ist und in der die Rolle durch Aufwickeln der Papierbahn bis zum Erzielen einer gebildeten Rolle anwächst,
    - Mittel zum Abnehmen der gebildeten Rolle,
    - eine Klebevorrichtung zum Aufbringen von Klebstoff auf einen zuvor bestimmten Abschnitt der Papierbahn, wobei die Klebevorrichtung dem Startmittel vorgelagert ist,
    dadurch gekennzeichnet, dass die Klebevorrichtung und das Mittel zum Herstellen einer quer verlaufenden Trennlinie derart übereinstimmend miteinander auf einer Auflagerolle angeordnet sind, dass das Mittel zum Herstellen einer quer verlaufenden Trennlinie die quer verlaufende Trennlinie erzeugen und die Klebevorrichtung gleichzeitig nahe der Linie eine abgemessene Menge des Klebstoffs aufbringt.
  2. Aufwickelvorrichtung nach Anspruch 1, wobei die Mittel zum Herstellen einer quer verlaufenden Trennlinie in der Papierbahn aus der Gruppe ausgewählt sind, die aus Folgendem besteht:
    - Mittel zum Ausführen eines sauberen Schnittes an der Papierbahn,
    - Mittel zum Perforieren der Papierbahn, die schließlich nahe dem Startmittel gerissen wird,
    - Mittel zum Reißen der Papierbahn, die dafür eingerichtet sind, das Papier an einer zuvor an der Bahn hergestellten Reißlinie zu zerreißen.
  3. Aufwickelvorrichtung nach Anspruch 1, wobei die Klebevorrichtung und das Mittel zum Herstellen einer quer verlaufenden Trennlinie übereinstimmend miteinander angeordnet sind, um die abgemessene Klebstoffmenge die Linie überbrückend aufzubringen.
  4. Aufwickelvorrichtung nach Anspruch 1, wobei die Klebevorrichtung und das Mittel zum Herstellen einer quer verlaufenden Trennlinie miteinander übereinstimmend angeordnet sind, um die abgemessene Klebstoffmenge vor der Linie aufzubringen.
  5. Aufwickelvorrichtung nach Anspruch 1, wobei die Klebevorrichtung und das Mittel zum Herstellen einer quer verlaufenden Trennlinie miteinander übereinstimmend angeordnet sind, um die abgemessene Klebstoffmenge hinter der Linie aufzubringen.
  6. Aufwickelvorrichtung nach Anspruch 1, wobei die abgemessene Klebstoffmenge wahlweise entweder nur vor oder nur nach der quer verlaufenden Reißlinie oder dem sauberen Schnitt oder der Reißlinie oder diese/diesen überbrückend aufgebracht wird, d. h. auf dem Abschnitt der Papierbahn, der entweder dem hinteren Ende der gebildeten Rolle oder dem vorderen Ende der zu bildenden Rolle entspricht, oder auf beiden Abschnitten.
  7. Aufwickelvorrichtung nach Anspruch 1, wobei die Startmittel Mittel zum Einführen eines Kerns in die Rollenaufnahme umfassen.
  8. Aufwickelvorrichtung nach Anspruch 1, wobei Mittel bereitgestellt sind, um die von einer Papierrolle abgewickelte Länge der Bahn zu messen, wobei die Mittel zum Messen ein Signal zum Antreiben der Klebeeinrichtungen bereitstellen, wenn eine gemessene Länge der Papierbahn abgewickelt ist.
  9. Aufwickelvorrichtung nach Anspruch 1, wobei die Klebevorrichtung und das Mittel zum Herstellen einer quer verlaufenden Trennlinie, insbesondere ein Messer, hin zu und weg von einer Papierbahn beweglich sind und durch ein Betätigungselement angetrieben ist, das aus der Gruppe ausgewählt ist, die aus folgendem besteht:
    einem pneumatischen Betätigungselement,
    einem elektrischen Betätigungselement,
    einem hydraulischen Betätigungselement.
  10. Aufwickelvorrichtung nach Anspruch 9, wobei das Betätigungselement jedweder Art vorteilhafterweise von der Art mit Nockenscheibe ist und aus der Gruppe ausgewählt sein kann, die aus Folgendem besteht: einem einzelnen Betätigungselement für den Block und das Messer mit einer im Verhältnis zur Betätigung des Blocks verzögerten Betätigung des Messers, zwei unabhängigen Betätigungselementen für sowohl das Messer als auch den Block, insbesondere bei Vorhandensein von zwei Blöcken, die einer dem Messer vorgelagert beziehungsweise einer dem Messer nachgelagert angeordnet sind und die ein einzelnes Betätigungselement umfassen können, um den Klebstoff zu beiden Seiten des Messers aufzubringen, oder zwei unabhängige Betätigungselemente, um den Klebstoff wahlweise entweder vor oder nach dem Messer oder dieses überbrückend aufzubringen.
  11. Aufwickelvorrichtung für eine Papierbahn, um eine Rolle herzustellen, insbesondere zur Herstellung von Toilettenpapierrollen, Küchenpapierrollen oder von Vliestüchern für den Haushaltsgebrauch, von Industrierollen und dergleichen, folgendes umfassend:
    - Zufuhrmittel zum Zuführen der Papierbahn in einer Zufuhrrichtung,
    - Mittel zum Ausführen eines sauberen Schnittes oder einer Reißlinie in der Papierbahn zwischen einem hinteren Ende der gerade gebildeten Rolle und einem vorderen Ende für eine neu zu bildenden Rolle,
    - Startmittel zum Beginnen der Herstellung einer neuen Rolle,
    - eine Wickelaufnahme, die dem Startmittel nachgelagert ist und in der die Rolle durch Aufwickeln der Papierbahn bis zum Erzielen einer gebildeten Rolle anwächst,
    - Mittel zum Abnehmen der gebildeten Rolle,
    - eine Klebevorrichtung zum Aufbringen von Klebstoff auf einen zuvor bestimmten Abschnitt der Papierbahn, wobei die Klebevorrichtung dem Startmittel vorgelagert ist,
    dadurch gekennzeichnet, dass die Klebevorrichtung und das Mittel zum Ausführen eines sauberen Schnittes oder zum Herstellen einer Reißlinie derart in direkter Folge aufeinander auf entsprechenden Auflagerollen angeordnet sind, dass die Klebevorrichtung nahe einem Trennbereich der Bahn eine abgemessene Klebstoffmenge aufbringt und das Mittel zum Ausführen eines sauberen Schnittes oder zum Herstellen einer Reißlinie unmittelbar nach oder unmittelbar vor dem Aufbringen des Klebstoffs im Trennbereich einen sauberen Schnitt ausführt oder eine Reißlinie herstellt.
  12. Aufwickelvorrichtung nach Anspruch 11, wobei die abgemessene Klebstoffmenge durch die Klebevorrichtung derart wahlweise aufgebracht wird, dass, wenn ein sauberer Schnitt hergestellt ist, der Klebstoff entweder nur vor oder nur nach dem sauberen Schnitt oder der Reißlinie oder diesen/diese überbrückend aufgebracht ist, d. h. auf dem Abschnitt der Papierbahn, der entweder dem hinteren Ende der gebildeten Rolle oder dem vorderen Ende der zu bildenden Rolle entspricht, oder auf beiden Abschnitten.
  13. Verfahren zum Aufwickeln einer Papierbahn, um eine Rolle herzustellen, insbesondere zur Herstellung von Toilettenpapierrollen, Küchenpapierrollen oder von Vliestüchern für den Haushaltsgebrauch, von Industrierollen und dergleichen, folgende Schritte umfassend:
    - Zuführen der Papierbahn in einer Zufuhrrichtung,
    - Beginnen der Herstellung einer neuen Rolle,
    - Aufwickeln der Papierbahn in einer Wickelaufnahme bis zum Erzielen einer gebildeten Rolle,
    - Erzeugen einer quer verlaufenden Trennlinie in der Papierbahn zwischen einem hinteren Ende der gebildeten Rolle und einem vorderen Ende für eine neue Rolle entlang einer Querlinie der Bahn,
    - Aufbringen einer abgemessenen Klebstoffmenge auf einen zuvor bestimmten Abschnitt der Papierbahn, wobei der Schritt des Aufbringens von Klebstoff vor dem Schritt des Beginnens einer neuen Rolle in der Rollenaufnahme ausgeführt wird,
    - Abnehmen der gebildeten Rolle,
    dadurch gekennzeichnet, dass der Schritt des Aufbringens einer abgemessenen Klebstoffmenge und der Schritt des Erzeugens einer Trennlinie miteinander übereinstimmend ausgeführt werden, um die quer verlaufende Trennlinie herzustellen und gleichzeitig das Aufbringen einer abgemessenen Klebstoffmenge nahe der Linie auszuführen.
  14. Aufwickelverfahren nach Anspruch 12, wobei der Schritt des Aufbringens der abgemessenen Klebstoffmenge auf einen Abschnitt der Papierbahn an mindestens einem der folgenden Abschnitte ausgeführt wird:
    - hinter der Reißlinie oder der Linie des sauberen Schnittes, um schließlich zu bewirken, dass das hintere Ende an der gebildeten Rolle haftet,
    - vor der Reißlinie oder der Linie des sauberen Schnittes, um zu bewirken, dass das vordere Ende an einem Kern haftet und mit dem Aufspulen einer neuen Rolle begonnen wird,
    - die Reißlinie oder die Linie des sauberen Schnittes überbrückend, um schließlich zu bewirken, dass das hintere Ende an der gebildeten Rolle haftet und um gleichzeitig zu bewirken, dass das vordere Ende an einem Kern haftet und mit dem Aufwickeln einer neuen Rolle begonnen wird.
EP08834938.6A 2007-10-02 2008-10-02 Aufwicklungsverfahren und aufwicklungsgerät zur anwendung dieses verfahrens Not-in-force EP2205513B1 (de)

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EP08834938.6A EP2205513B1 (de) 2007-10-02 2008-10-02 Aufwicklungsverfahren und aufwicklungsgerät zur anwendung dieses verfahrens
PCT/IB2008/002607 WO2009044264A2 (en) 2007-10-02 2008-10-02 Improved rewinding method and rewinding machine that carries out this method

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WO2009044264A2 (en) 2009-04-09
ES2430845T3 (es) 2013-11-22
WO2009044264A3 (en) 2009-05-22
US20100237179A1 (en) 2010-09-23
EP2205513A2 (de) 2010-07-14

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