EP3405421B1 - Dispositif et procédé de changement d'une bobine et de liaison d'une nouvelle bande de matériau à une extrémité d'une ancienne bande de matériau - Google Patents

Dispositif et procédé de changement d'une bobine et de liaison d'une nouvelle bande de matériau à une extrémité d'une ancienne bande de matériau Download PDF

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Publication number
EP3405421B1
EP3405421B1 EP17700958.6A EP17700958A EP3405421B1 EP 3405421 B1 EP3405421 B1 EP 3405421B1 EP 17700958 A EP17700958 A EP 17700958A EP 3405421 B1 EP3405421 B1 EP 3405421B1
Authority
EP
European Patent Office
Prior art keywords
material web
web
trailing end
transport
reel
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.)
Active
Application number
EP17700958.6A
Other languages
German (de)
English (en)
Other versions
EP3405421A1 (fr
EP3405421B2 (fr
Inventor
Holger Frische
Gerd Kasselmann
Tim Kirchhoff
Peter Strunk
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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
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Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to PL17700958.6T priority Critical patent/PL3405421T5/pl
Publication of EP3405421A1 publication Critical patent/EP3405421A1/fr
Publication of EP3405421B1 publication Critical patent/EP3405421B1/fr
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Publication of EP3405421B2 publication Critical patent/EP3405421B2/fr
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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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll
    • B65H19/1821—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll the replacement web being accelerated or running prior to splicing contact
    • 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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1863—Support arrangement of web rolls with translatory or arcuated movement of the roll supports
    • 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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1884—Details for effecting a positive rotation of web roll, e.g. accelerating the replacement roll
    • B65H19/1894—Details for effecting a positive rotation of web roll, e.g. accelerating the replacement roll the replacement web being accelerated through contact with the expiring 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4606—Preparing leading edge for splicing
    • B65H2301/4607—Preparing leading edge for splicing by adhesive tape
    • B65H2301/46072—Preparing leading edge for splicing by adhesive tape inserted between leading edge and wound 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
    • B65H2301/46—Splicing
    • B65H2301/4606—Preparing leading edge for splicing
    • B65H2301/46075—Preparing leading edge for splicing by adhesive tab
    • 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
    • B65H2301/46—Splicing
    • B65H2301/462—Form of splice
    • B65H2301/4623—Spaced article or web portions, i.e. gap between edges

Definitions

  • the invention relates to an apparatus and a method for unwinding a material web.
  • the material web wound on the first roll is accordingly in the unwinding device, in particular at a first unwinding position.
  • the winding can preferably be driven in rotation by a drive in order to simplify unwinding.
  • the material web can then be transported via a transport device, in particular a transport roller, the material web generally not occupying the entire transport area, but rather only a part thereof, for example a cylinder segment in the case of a transport roller. This area can be generally referred to as a management area.
  • the transport device can be spaced from the winding or can be in direct contact with the outermost layer of the winding.
  • the unwinding device To change the winding, the unwinding device must now be brought up to a second winding with which the new material web can be provided. This winding can then be in a second unwinding position.
  • the first reel can be brought into a second unwinding position and the second reel can be brought into the first unwinding position in the unwinding device. In the unwinding position, the winding can be moved within the unwinding device.
  • a drive is included with which the winding can be driven in rotation.
  • the winding can be accelerated and also braked by the drive, wherein a separate brake can alternatively or additionally be provided for braking.
  • a separating device is provided with which a trailing end of the first material web can be generated.
  • This separating device acts on the material web in the guide area or in front of it.
  • in front or upstream is meant a position which, seen in the direction of transport, lies between the first winding and the transport device. It is preferred if the separating device is immovable relative to the material web at least at the moment of the separating process, i. that is, it moves itself at the transport speed of the material web.
  • a control and / or regulating device for mutual adjustment or positioning of the trailing end and a web start of the new material web.
  • the control and / or regulating device allows the new winding and / or the new material web to be set to a transport speed which the old material web assumes at the moment when the trailing end of the first material web is connected.
  • the setting can be made before the actual connection. It is crucial, however, that after setting the transport speeds of the first and second material web only synchronously, preferably no longer.
  • the mutual adjustment not only includes speed synchronization, but also placing the start of the web on a base on which the end of the first web of material rests. In particular, this is the guiding area of the transport device.
  • the setting is made so that the distance between the trailing end and the start of the web is greater than 0 mm.
  • An overlap of both material webs is excluded.
  • An overlap would mean an excessive, namely usually twice the material thickness, the material which is required for the durable connection of the two material webs, such as adhesive or an adhesive tape, also contributing to the thickening.
  • Such a thick spot is capable of disrupting the operation of a processing machine. Due to the lack of overlap, however, the unwinding device according to the invention provides a connection point that can be processed more easily in a processing machine and avoids malfunctions there.
  • both material webs are connected to one another with a connecting element, an adhesive tape, for example, being able to be used as the connecting element.
  • the guide area of the transport device can provide the necessary counterforce during the connection process and thus serves as a counterpart.
  • the setting and / or connection takes place at a transport speed of more than 0 meters per minute (m / min), preferably more than 50 m / min, in particular more than 100 m / min.
  • m / min meters per minute
  • the processing machine can thus be continuously supplied with the material web, so that it can continue to produce with little or no restrictions.
  • the transport path of the material web downstream of the transport device is not changed during the connection.
  • the device is designed to be buffer-free.
  • Such a buffer store which is often designed as a dancer device, could indeed enable the material webs to be connected at a standstill without the further processing machine having to be slowed down or stopped, but such a buffer store is space-consuming, expensive and requires maintenance.
  • such a buffer leads to different web tensions, which can be very disadvantageous for numerous applications, since this can change the properties of the webs of material, in particular if the web of material is or comprises a plastic film.
  • a transport device in which the separating device is integrated.
  • the separating device can be designed as a separating knife. In the rest position, the separating device can be integrated within the transport device, in particular within the roller body of a transport roller, and, in its functional position, protrude from the outer surface of the transport device and thus bring about the separation of a material web.
  • This is in particular a space-saving arrangement of the separating device.
  • Such a transport device can additionally comprise devices for fixing the first and / or the second material web on the guide area. These can be holes in the guide area of the transport device that can be subjected to a negative pressure, such as suction bores. However, electrodes can also be provided which can ensure an electrostatic charging of the material web.
  • blowing nozzles can be provided with which a gas flow can be directed onto the material web in order to be able to apply a force in the direction of the guide area.
  • a braking device can act on the first winding in order to be able to hold back the end of the first material web that follows after the separation so that it does not get into the area in which the connection of the first Material web is carried out with the second material web.
  • the optional drive can be operated as a generator (electric brake) and / or a mechanical brake can be provided, which preferably acts on the winding axis receiving the winding.
  • the separating cut is preferably a cut running at right angles to the transport direction of the material web, so that the trailing end and the start of the web, in particular if this is also an edge running at right angles to the transport direction, are at a constant distance, which has a positive effect on the tensile forces during further transport which affects material webs. Different tensile forces and / or web tensions in the transverse direction are thus minimized or even completely prevented.
  • the first material web can be cut and the trailing end thus created can be held in the guide area.
  • a double-sided adhesive tape can be provided, the adhesive sides of which have different adhesive forces.
  • the side that has the lower adhesive force can be used to initially hold the start of the web on the roll, especially when the roll rotates.
  • the side which has the higher adhesive force can be attached to the beginning of the web in such a way that a first surface part of this side adheres to the beginning of the web and a second surface part is free and is brought into connection with it when the trailing end is set.
  • the transport device can be designed in such a way that after mutual adjustment of the trailing end and the start of the path the latter is held on the transport device by holding forces.
  • holes in the jacket of the transport device which can be acted upon by vacuum are conceivable and are used for the suction fixing of at least the beginning of the web.
  • Blowing nozzles from which a gas under excess pressure flows out, the gas flow being directed towards the start of the web are also conceivable.
  • electrodes for electrostatically charging the web to create an electrostatic attraction are also conceivable here.
  • Mechanical aids such as holding tongs can also be provided for the above-mentioned purpose.
  • a connecting element application device in particular an adhesive strip application device, can be provided within the unwinding device.
  • a connecting element can then be applied when the trailing end and the beginning of the path are already mutually adjusted and are still in the guide area.
  • a further transport device can be provided for the new material web, with which the new material web can be guided before being set to the trailing end.
  • a further separating device is also provided for generating a start of the path.
  • This further transport device also includes a guide area. After the start of the web has been generated, the further transport device can be adjusted to the first transport device, the start of the web being transferable to the first transport device.
  • This transfer process can be supported by at least one device for pushing off the beginning of the web from the further transport device.
  • These can be openings on the outer surface of the transport device, for example, which can be subjected to an overpressure, so that the beginning of the path separates from the mentioned guide region of the second transport device.
  • the Fig. 1 shows a schematic diagram of an unwinding device 100 according to the invention during the unwinding phase, in which there is initially a winding 101 in the unwinding device 100.
  • the material web 102 is pulled off the winding 101 and runs over a contact roller 103, against which the winding 101 is preferably employed.
  • the winding 101 can be rotatably mounted on slides, not shown, in which case the slides can then be displaced on rails relative to the contact roller 103.
  • the rails are connected to swivel arms 104, which are pivotable about the axis of rotation 105 of the contact roller 103, so that the winding 101 can assume different angular positions of the contact roller 103.
  • the winding 101 rotates in the direction of arrow 111 and the contact roller 103 in the direction of arrow 113, ie they rotate in opposite directions.
  • the direction of transport of the material web 102 is indicated by the arrow 112.
  • the Fig. 2 now shows the situation in which the winding 101 has been unwound up to a small roll size, in which there is only so much material web on the winding that at the end of the changing process there is only a small safety reserve.
  • the swivel arms 104 were swiveled in the direction of arrow 201 against the direction of rotation of the contact roller 103, so that the winding 101 can be transferred to the bearing arms 202.
  • this position which can be referred to as the second winding position, the winding continues to be unwound.
  • Fig. 3 it is now shown that the roll remains in the second unwind position.
  • the swivel arms 104 are now swiveled back.
  • the position that the swivel arms take after swiveling back can be the unwinding position as per Figure 1 be, or, as shown, a receiving position for receiving a new roll 121.
  • This position is in relation to the unwinding position Fig. 1 preferably lowered in order not to have to lift the reel by means of a crane or a forklift.
  • the Fig. 4 now shows the situation according to the Fig. 3 , but with swivel arms 104 pivoted back into the unwinding position Fig. 4 yet another advantageous detail is shown.
  • the new roll 121 is prepared for a roll change in such a way that a double-sided adhesive tape 122 is glued in the transversal direction with its underside 124 in the transition region from the first material web layer to the second material web layer.
  • the beginning of the web 125 is glued with its rear side onto a partial surface of the top side 123 of the adhesive tape 122.
  • the part of the upper side 123 of the adhesive tape 122 which is not occupied by the start of the web 125 initially remains free.
  • the second winding has been set in rotation. This is indicated by arrow 131.
  • the second winding 121 was synchronized with the contact roller 103 with regard to the peripheral speed and the angular position, wherein the beginning of the web 125 strikes the contact roller 103 at or just behind the position 141 of the separating knife 142 of the contact roller 103.
  • just behind is preferably meant a range of greater than 0 millimeters (mm) to 30 mm, in particular up to 20 mm and preferably up to 10 mm.
  • the separating knife after it has passed the winding 101, was moved out of the peripheral surface of the contact roller in order to cut through the material web 102. Immediately after the cutting cut has been made, the cutting knife 142 is withdrawn again so as not to damage the winding 121. Before the web end of the material web 102 now produced by the separating cut passes the contact point between the contact roller 103 and the winding 121, the winding 121 was already moved up to the contact roller 103 by the slide-rail system described above in order to come into contact with it.
  • the Fig. 6 it can be seen that the beginning of the new winding 121 reaches the contact line almost simultaneously with the end of the web of material 102, the free surface of the adhesive tape 122 now being placed on the end of the web, so that the end of the web of material 102 coincides with the beginning of the new web Winding is connected.
  • the double-sided adhesive tape 122 comprises an upper side 123, which has a higher adhesion with respect to the material of the material webs than the adhesion of the lower side 124 of the adhesive tape. This can ensure that when the two material webs have been connected, the adhesive tape also detaches itself from the transition between the first and second material layers of the winding 121.
  • openings which can be subjected to negative pressure can preferably be provided for this purpose.
  • Such openings are in the Fig. 6 Not shown.
  • the first winding 101 is not replaced by one Braking device shown braked so that the web end 143 does not reach the area of the contact line.
  • connection point which can be seen on the adhesive tape 122, is transported further by the rotation of the contact roller 103 which continues to take place, while the first coil 101 is removed from the contact roller along the bearing arms 202 and brought to a removal position . From there, the first winding 101 can be removed from the winding device 100.
  • the state is according to the Figure 1 have been restored, the second winding 121 now being the first winding 101 for the subsequent changing operation.
  • Reference list 100 Unwinder 101 Wrap 102 Material web 103 Contact roller 104 Swivel arms 105 Axis of rotation 111 arrow 112 arrow 113 arrow 121 New wrap 122 Double sided tape 123 Top of tape 122 124 Underside of the adhesive tape 122 125 Start of the web 131 arrow 141 Position of the cutting knife 142 142 Cutting knife 143 Web end 201 arrow 202 Bearing arms

Landscapes

  • Replacement Of Web Rolls (AREA)

Claims (8)

  1. Dispositif de changement d'une bobine pour la liaison d'une nouvelle bande de matériau à une extrémité d'une ancienne bande de matériau, avec
    • une première bobine (101) dont la première bande de matériau (102) enroulée peut être déroulée,
    • un dispositif de transport (103), plus particulièrement un rouleau de transport, par l'intermédiaire duquel la première bande de matériau peut être guidée dans une zone de guidage avec une vitesse de transport,
    • une deuxième bobine (121) avec laquelle la nouvelle bande de matériau peut être mise à disposition,
    • un dispositif d'entraînement pour l'entraînement e rotation de la deuxième bobine,
    • un dispositif de séparation (142) pour le sectionnement de la première bande de matériau, avec lequel la bande de matériau peut être sectionnée pour la production d'une extrémité aval dans la zone de guidage ou en amont de la zone de guidage,
    • un dispositif de commande et/ou de régulation pour le réglage mutuel de l'extrémité aval et d'un début de bande de la deuxième bande de matériau, de façon à ce que l'extrémité aval et le début de bande présentent une distance supérieure à 0 mm entre eux et plus particulièrement ne se superposent pas,
    • l'extrémité aval et le début de bande de la nouvelle bande de matériau pouvant être reliés entre eux dans la zone de guidage du dispositif de transport avec un élément de liaison et
    • caractérisé en ce que la vitesse de transport de l'extrémité aval et du début de bande dans la zone de guidage est supérieure à 0 mètre par minute.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    l'extrémité aval et le début de bande (125) présentent entre eux une distance inférieure à 30 mm, plus particulièrement inférieure à 20 mm et de préférence inférieure à 10 mm.
  3. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    le réglage et/ou la liaison a lieu à une vitesse de transport supérieure à 0 mètre par minute (m/min), de préférence supérieure à 50 m/min, plus particulièrement supérieure à 100 m/min.
  4. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    il est conçu sans stockage intermédiaire.
  5. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif de transport (103) utilisé est un rouleau de transport, plus particulièrement un rouleau de contact.
  6. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif de sectionnement (142) est disposé à l'intérieur du dispositif de transport (103) et peut être guidé, pour le sectionnement, hors de la surface sur laquelle repose la bande de matériau, une coupe de sectionnement étant effectuée.
  7. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    un dispositif de freinage est prévu, avec lequel la première bobine peut être freinée.
  8. Procédé pour le changement d'une bobine et pour la liaison d'une nouvelle bande de matériau à une extrémité d'une ancienne bande de matériau, moyennant quoi
    • une première bande de matériau (102) enroulée est déroulée par une première bobine (101),
    • la première bande de matériau est guidée par l'intermédiaire d'un dispositif de transport (103), plus particulièrement un rouleau de transport, dans une zone de guidage avec une vitesse de transport,
    • la nouvelle bande de matériau est mise à disposition par la deuxième bobine (121),
    • la deuxième bobine est entraînée en rotation par un dispositif d'entraînement,
    • la première bande de matériau est sectionnée avec un dispositif de sectionnement (142) pour le sectionnement d'une extrémité en aval dans la zone de guidage ou en amont de la zone de guidage,
    • l'extrémité aval et un début de bande de la deuxième bande de matériau sont réglés par l'intermédiaire d'un dispositif de commande et/ou de régulation, de façon à ce que l'extrémité aval et le début de bande présentent entre eux une distance supérieure à 0 mm et plus particulièrement ne se superposent pas,
    • l'extrémité aval et le début de bande de la nouvelle bande de matériau sont reliés entre eux dans la zone de guidage du dispositif de transport avec un élément de liaison et caractérisé en ce que
    • la vitesse de transport de l'extrémité aval et du début de bande dans la zone de guidage est supérieure à 0 mètre par minute.
EP17700958.6A 2016-01-18 2017-01-18 Dispositif et procédé de changement d'une bobine et de liaison d'une nouvelle bande de matériau à une extrémité d'une ancienne bande de matériau Active EP3405421B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17700958.6T PL3405421T5 (pl) 2016-01-18 2017-01-18 Urządzenie i sposób wymiany zwoju i łączenia nowej taśmy materiałowej z końcem starej taśmy materiałowej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016200570 2016-01-18
PCT/EP2017/050982 WO2017125436A1 (fr) 2016-01-18 2017-01-18 Dispositif et procédé de changement d'une bobine et de liaison d'une nouvelle bande de matériau à une extrémité d'une ancienne bande de matériau

Publications (3)

Publication Number Publication Date
EP3405421A1 EP3405421A1 (fr) 2018-11-28
EP3405421B1 true EP3405421B1 (fr) 2020-03-11
EP3405421B2 EP3405421B2 (fr) 2023-04-26

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ID=57860861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17700958.6A Active EP3405421B2 (fr) 2016-01-18 2017-01-18 Dispositif et procédé de changement d'une bobine et de liaison d'une nouvelle bande de matériau à une extrémité d'une ancienne bande de matériau

Country Status (4)

Country Link
US (1) US11192744B2 (fr)
EP (1) EP3405421B2 (fr)
PL (1) PL3405421T5 (fr)
WO (1) WO2017125436A1 (fr)

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EP0010869A1 (fr) 1978-10-02 1980-05-14 The Black Clawson Company Méthode et dispositif pour la formation d'une éclisse entre un rouleau de tissu en fin de course et le commencement d'un nouveau rouleau de tissu
US5881964A (en) 1996-05-24 1999-03-16 Fuji Photo Film Co., Ltd. Web splicing apparatus having offset splicing and taping
US20040060641A1 (en) 2002-10-01 2004-04-01 Ward James K. Apparatus and method for forming a butt splice
US20140251528A1 (en) 2013-03-07 2014-09-11 Martin Automatic, Inc. Apparatus and methods for forming a butt splice on a running web

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IT1264115B1 (it) * 1993-04-09 1996-09-10 Azionaria Costruzioni Acma Spa Dispositivo di cambio-bobina per dispositivi di alimentazione di materiale in nastro ad una macchina operatrice.
US5900090A (en) * 1997-05-19 1999-05-04 Distefano; Joseph Apparatus and method for setting a gap between strips of web
IT1299879B1 (it) * 1998-03-05 2000-04-04 Gd Spa Unita' di alimentazione di un nastro ad una macchina utilizzatrice.
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Publication number Priority date Publication date Assignee Title
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US11192744B2 (en) 2021-12-07
PL3405421T3 (pl) 2020-09-21
US20190016550A1 (en) 2019-01-17
EP3405421A1 (fr) 2018-11-28
WO2017125436A1 (fr) 2017-07-27
EP3405421B2 (fr) 2023-04-26
PL3405421T5 (pl) 2023-06-12

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