EP3216730B1 - Dispositif d'enroulement et de déroulement d'une bande de matériau d'un noyau ou sur un noyau - Google Patents

Dispositif d'enroulement et de déroulement d'une bande de matériau d'un noyau ou sur un noyau Download PDF

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Publication number
EP3216730B1
EP3216730B1 EP17000264.6A EP17000264A EP3216730B1 EP 3216730 B1 EP3216730 B1 EP 3216730B1 EP 17000264 A EP17000264 A EP 17000264A EP 3216730 B1 EP3216730 B1 EP 3216730B1
Authority
EP
European Patent Office
Prior art keywords
winding
material web
winding core
designed
unwinding
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
EP17000264.6A
Other languages
German (de)
English (en)
Other versions
EP3216730A1 (fr
EP3216730B8 (fr
Inventor
Eduard Brunner
Klaus Falser
Peter Weingartner
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.)
Durst Phototechnik Digital Technology GmbH
Durst Phototechnik AG
Original Assignee
Durst Digital Technology GmbH
Durst Phototechnik AG
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 Durst Digital Technology GmbH, Durst Phototechnik AG filed Critical Durst Digital Technology GmbH
Publication of EP3216730A1 publication Critical patent/EP3216730A1/fr
Application granted granted Critical
Publication of EP3216730B1 publication Critical patent/EP3216730B1/fr
Publication of EP3216730B8 publication Critical patent/EP3216730B8/fr
Active 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
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/028—Supporting web roll on its outer circumference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/023—Supporting web roll on its outer circumference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4137—Supporting web roll on its outer circumference
    • B65H2301/4138—Supporting web roll on its outer circumference belt arrangement
    • B65H2301/41382—Supporting web roll on its outer circumference belt arrangement arranged in stationary manner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/20—Belt drives
    • B65H2403/21—Timing belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/942—Bidirectional powered handling device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/15—Digital printing machines

Definitions

  • the present invention relates to an apparatus, in particular for an inkjet printer, for unwinding or winding a material web from or onto a winding core, the apparatus comprising a frame with a support means for the winding core and means for positioning the winding core on the support means.
  • material web in the context of sheet material, preferably a full-surface material such as paper or a fabric-like material such as textile fabric or polyester fabric as a roll, understood with certain bandwidth, which material is particularly suitable as a recording material for inkjet printing.
  • prior art devices for printers for unwinding a web of material from a winding core which have a frame with two idle end rollers as support means.
  • a holding device is arranged on the frame, with which the roll of material strip is supported rotatably directly on the end rollers, wherein during the development, the holding device permits a unidirectional translational movement of the axis of rotation of the winding core, such that the material web roll always remain in direct contact with the two end rolls during unwinding can.
  • Such devices are suitable to handle webbing rolls having a relatively large width of, for example, 5 meters, as with the aid of the support means a deflection of the winding core can be prevented, so that the required straightness of the web is ensured.
  • the Straight running in devices in which a rotatably connected to the winding core and rotatably mounted on a frame drive shaft has both the Stauerals and drive function held for material rolls of tape, which have a width of 5 meters, not always technically guaranteed.
  • a web typically passes through three sections.
  • the first section comprises a device for unwinding the material web from the winding core, a dancer roller and at least one deflection roller over which the material web is guided.
  • the second section comprises, for example, one or more printing modules for printing the material web and a support plate associated therewith for supporting the material web to be printed, which has a constant distance from the modules.
  • the support plate itself can be designed as a vacuum pressure support plate, with which the material web is temporarily fixed by the plate is subjected to vacuum by means of vacuum generating means.
  • the printer may comprise one or more deflection rollers, over which the material web is guided, as well as a further device for winding / unwinding the material web.
  • the printing modules may be arranged in the second section on a print carriage which may be configured to be scanned in a predetermined manner in one dimension bidirectionally across the entire width of the web during which a print line is printed.
  • a line is finished, the roll of material rolls is continued one line wide and printing of another line can be started.
  • the supply of the material web from the first section to the second section can be effected stepwise by position control of the dancer roller during which the material web is fixed in the second section by means of a vacuum support plate.
  • Some of the known device for unwinding a material web are equipped with a brake device with brake disk and brake shoes, which can act on the winding core with a predetermined torque.
  • a torque acting on the brake disc is transmitted via the contact pressure of suitable brake shoes.
  • the braking process itself takes place in such a way that during the processing, the contact pressure is not is controllable. An initially set contact pressure can thus only take place before start-up, ie before unwinding, and not during such braking devices.
  • the wound material web is exposed along its entire width to a line load emanating from the end rolls.
  • the Abwieglung it comes on the basis of a, more or less large, contact pressure and compression of the roll of material roll, which sooner or later damage, such as a crumpling, can cause the web.
  • the solution to the problem of unidirectional operation is to expose the strip material to such a high tensile stress, at least in the first section of a printer, that it is always tight on the roll.
  • the known solution is not suitable because there is a real risk that they break.
  • Another known solution is to place the rollers an endless belt and to lay the roll of material roll freely on this endless belt between the rollers.
  • the endless belt nestles in the support area and the circumference of the roll of material roll on which only a surface load and no longer the problematic line load acts.
  • the problem with this solution is that due to the inertia of the roll of material roll, once rotated, this danger of rolling over the support area and the rolls in an abrupt stop, or to cause a strip of material tape.
  • the EP0826615A1 revealed in the FIGS. 1 and 2 a device for unwinding or winding up a material web (3) from or onto a winding core (4), wherein the device comprises a supporting device with bearing surface for the jacket of the cylinder formed by wound parts (2) of the material web (3) on the winding core and the supporting device is designed so that the bearing surface under load of the applied cylinder is concave in the region of the support to the mantle of the cylinder and when rotating the cylinder a synchronous Mitlauf is enabled, wherein the device in the axis of rotation of the winding core engaging means for positioning (5, 6), which allow at least a horizontal positioning of the cylinder, wherein the device comprises a drive means (30) for driving the cylinder.
  • the object of the present invention is to provide an alternative to the above device, simple device for unwinding a web of material from a winding core.
  • document FR 2 076 500 discloses a device for winding a material web, which comprises a concave support surface for the roll of material and is designed with engaging in the axis of rotation of the winding core means for positioning.
  • a device for unwinding or winding up a material web from or onto a winding core
  • the device comprises a supporting device with bearing surface for the jacket of the cylinder formed by wound parts of the material web on the winding core and the support device is designed such that the Support surface under load of the applied cylinder is concave in the area of the support to the jacket of the cylinder and a synchronous caster is enabled upon rotation of the cylinder
  • the device comprises in the axis of rotation of the winding core engaging means for positioning, which at least a horizontal positioning of the cylinder allow
  • the device comprises one or two drive means, characterized in that the winding core directly or indirectly with in each case one rotatably mounted on the means for positioning connection means is engageable, wherein the one or more drive means can act on the winding core bidirectionally directly or indirectly via at least one of the two connection means with a predetermined torque or can, in such a way that the material web off or can be wound up.
  • the device according to the invention is particularly suitable as a development device for an inkjet printer.
  • FIG. 1 shows a device 101 for unwinding ⁇ winding a material web 103 of a winding core 105, the device 101 having a frame 108 with support means 107 for the winding core 105 and means for positioning 109 thereof on the support means 107, wherein the material web 103 tangentially of the material laden Winding core 105 and / or can be wound, wherein the support means 107 comprises a support surface which is formed under load of the winding core 105 as a concave support surface and is movable, wherein the means for positioning 109 holds the winding core 105 perpendicular to its axis of rotation parallel movable ,
  • the support surface is formed by an endless belt 113, which is guided over two idle end rollers 111, which are aligned parallel to the axis of rotation A (not shown) and are rotatably mounted on the frame 108 respectively.
  • the means for positioning 109 is formed as a pivot arm, which on a first end has a rotatably mounted connection means 116 which is directly or indirectly engageable with the winding core 105.
  • the swing arm itself is rotatably mounted on the frame 108 at the second end.
  • the pivot arm comprises at its two ends in each case a drive gear 117, 117 ', over which a circumferential chain 115 is guided, wherein a tensioning gear 119 is provided, which can engage between the gears 117 and 117' in the chain 115.
  • the drive gear 117 can be driven by a drive means (not shown), which can act on the winding core 105 bidirectionally with a predetermined torque directly or indirectly via the connection means 116 in order to be able to take off or wind up the material web 103.
  • FIG. 2 shows a cross-sectional view of the particularly preferred embodiment of the device 101 FIG. 1 which represents the winding core in a material-loaded and -less winding position (P1, P2).
  • a device 101 for unwinding or winding up a material web 103 from or onto a winding core 105 has been disclosed, wherein the device 101 comprises a supporting device 107 with bearing surface for the jacket of the cylinder formed by wound parts of the material web 103 on the winding core 105 and the Support device 107 is configured so that the bearing surface under load of the applied cylinder is concave in the region of the support to the mantle of the cylinder and a synchronous Mitlauf is possible during rotation of the cylinder.
  • the device comprises positioning means 109 engaging in the axis of rotation of the winding core 105, which enable at least horizontal positioning of the cylinder.
  • the support surface is bidirectionally movable.
  • the means for positioning 109 as two parallel to the rotational axis of the winding core 105 mutually displaceable on a frame 108 arranged pivot arms are formed, which are rotatably mounted on opposite sides of the frame 108.
  • the winding core 105 can be brought into engagement, directly or indirectly, with in each case one connection means 116 which is rotatably mounted on the means for positioning 109.
  • the device 101 comprises one or two drive means which can or can act on the winding core 105 bidirectionally with a predetermined torque directly or indirectly via at least one of the two connection means 116, such that the material web 103 can be wound off or wound up.
  • a drive means is for example an electric drive motor.
  • the drive means is or can be controlled by a control unit in such a way that the material web 103 can experience a constant tensile stress at least at times, preferably all the time, during winding.
  • the support means 107 may comprise at least two mutually spaced support surfaces.
  • a support surface may be formed by an endless belt 113, which is guided over two idle running end rollers 111, which are aligned parallel to the axis of rotation A of the winding core 105.
  • a support surface may be formed as a continuous support surface.
  • the endless belt 113 may be at least partially elastic, so that it can at least partially conform under load to the shape of the supported load of the material-laden or material-less winding core 105.
  • the device 101 may comprise a winding shaft, which is or are formed as one piece or as a separate stub shaft and by means of coupling means, which may comprise the winding shaft, rotatably connected to the winding core 105 or are, wherein the winding shaft or the separate stub shaft with the connection means 116 is engageable or are.
  • a coupling means may be formed as an inflatable coupling means.
  • the end rollers 111 and the means 109 for positioning can be selected so that the material-laden and material-less winding core 105 at any time of settlement of the end rollers 111 spaced apart on the support surface is positioned.
  • a pivot arm comprises at its two ends in each case a drive gear 117, 117 ', over which a circumferential chain 115 is guided, wherein a clamping gear 119 is provided which can engage between the gears 117 and 117' in the chain 115 ,
  • At least one end roller 111 can be moved translationally by means of translation in order to be able to retension the bearing surface before or during the winding.
  • the inventive device (101) is particularly suitable to be assigned to an inkjet printer.
  • an inkjet printer comprising a first device for winding or unwinding a material web 103, a dancer roller, at least one deflecting device and a second device for unwinding or winding the material web 103, characterized in that one of the two devices is used as the one inventive device 101 for Unwinding or winding of the material web 103 is formed by one or on a winding core 105.
  • the dancer roller can be translationally movable and designed such that it is acted upon by a preferably constant force against the material web 103, wherein the dancer roller in combination with the one or more drive means is or are controlled by a control unit such that the Material web 103 during winding at least temporarily, preferably all the time can experience a constant tension.
  • the dancer roller can be translationally movable and designed such that it is acted upon by a preferably constant force against the material web (103) in order to taut the material web (103) at least between the dancer roller and the device (101) hold.

Landscapes

  • Replacement Of Web Rolls (AREA)

Claims (15)

  1. Dispositif (101) d'enroulement ou de déroulement d'une bande de matière (103) d'un ou sur un noyau d'enroulement (105), le dispositif (101) comprenant un dispositif de support (107) ayant une surface de support pour l'enveloppe du cylindre formé par des parties de la bande de matière (103) enroulées sur le noyau d'enroulement (105) et le dispositif de support (107) étant conçu de telle manière que la surface de support, sous le poids du cylindre mis au-dessus, s'adapte de façon concave dans la région du support à l'enveloppe du cylindre et lors de la rotation du cylindre une rotation synchrone est possible, le dispositif (101) comprenant des moyens de positionnement (109) qui s'engrènent dans l'axe de rotation du noyau d'enroulement (105) et qui permettent un positionnement du moins horizontal du cylindre, le dispositif (101) comprenant un ou deux moyens moteurs, caractérisé en ce que le noyau d'enroulement (105) peut être amené à s'engrener directement ou indirectement avec un moyen de connexion (116) monté de façon tournante à chacun des moyens de positionnement (109), un couple prédéfini pouvant être appliqué directement ou indirectement au noyau d'enroulement (105) par le ou les moyens moteur(s) (116) au moyen de du moins un des moyens de connexion (116) de façon bidirectionnelle de telle manière que la bande de matière (103) peut être enroulée ou déroulée.
  2. Dispositif (101) selon la revendication 1 caractérisé en ce que les moyens de positionnement (109) sont conçus comme deux bras pivotants qui sont parallèles à l'axe de rotation du noyau d'enroulement (105), déplaçables l'un par rapport à l'autre, disposés à un châssis (108) et montés de façon tournante aux côtés opposés du châssis (108).
  3. Dispositif (101) selon l'une des revendications 1 ou 2 caractérisé en ce que le ou les moyens moteur(s) peut/peuvent être commandé(s) par une unité de commande de telle manière que la bande de matière (103) peut subir pendant l'enroulement un effort de traction constant du moins temporairement, de préférence tout le temps.
  4. Dispositif (101) selon l'une des revendications précédentes caractérisé en ce que le dispositif de support (107) comprend du moins deux surfaces de support espacées l'une de l'autre.
  5. Dispositif (101) selon l'une des revendications précédentes caractérisé en ce que l'une surface de support est formée par une bande sans fin (113) qui est guidée sur deux rouleaux d'extrémité (111) tournant à vide qui sont alignés parallèlement à l'axe de rotation A du noyau d'enroulement (105).
  6. Dispositif (101) selon l'une des revendications précédentes caractérisé en ce que l'une surface de support est conçue comme une surface de support continue.
  7. Dispositif (101) selon l'une des revendications 5 ou 6 caractérisé en ce que la bande sans fin (113) est élastique du moins partiellement de sorte que celle-ci, sous charge, peut s'adapter du moins partiellement à la forme du poids supporté du noyau d'enroulement (105) chargé de matière ou non chargé de matière.
  8. Dispositif (101) selon l'une des revendications précédentes caractérisé en ce que le dispositif (101) comprend un arbre d'enroulement qui est conçu en une pièce ou comme des bouts d'arbre séparés et celle-ci ou ceux-ci peut/peuvent être relié(s) de façon tournante, à l'aide de moyens de couplage que l'arbre d'enroulement peut comprendre, au noyau d'enroulement, l'arbre d'enroulement ou les bouts d'arbre séparés pouvant être mis en prise avec les moyens de connexion (116).
  9. Dispositif (101) selon l'une des revendications précédentes caractérisé en ce que les moyens de couplage sont conçus comme des moyens de couplage gonflables.
  10. Dispositif (101) selon l'une des revendications 5 à 9 caractérisé en ce que les rouleaux d'extrémité (111) ainsi que les moyens de positionnement (109) sont choisis de telle manière que le noyau d'enroulement (105) chargé de matière ou non chargé de matière peut être positionné, à tout moment de l'enroulement, sur la surface de support de manière espacée des rouleaux d'extrémité (111).
  11. Dispositif (101) selon l'une des revendications précédentes caractérisé en ce qu'un bras pivotant comprend à chacun de ses deux extrémités une roue dentée motrice (117, 117') autour de laquelle une chaine circulante (115) est menée, une roue dentée de serrage (119) étant prévue qui peut s'engrener entre les roues dentées (117 et 117') dans la chaine (115).
  12. Dispositif (101) selon la revendication 5 et l'une des revendications précédentes caractérisé en ce que du moins un rouleau d'extrémité (111) peut être déplacé par mouvement de translation à l'aide de moyens de translation pour pouvoir resserrer la surface de support avant ou pendant l'enroulement.
  13. Imprimante à jet d'encre comprenant un premier dispositif d'enroulement ou de déroulement d'une bande de matière (103), un rouleau danseur, du moins un dispositif déflecteur et un second dispositif d'enroulement ou de déroulement de la bande de matière (103) caractérisé en ce que l'un des deux dispositifs est conçu comme un dispositif (101) d'enroulement ou de déroulement de la bande de matière (103) d'un ou sur un noyau d'enroulement (105) selon l'une des revendications 1 à 12.
  14. Imprimante à jet d'encre selon la revendication 13 caractérisé en ce que le rouleur danseur peut être déplacé par mouvement de translation et est conçue de telle manière qu'une force, de préférence constante, est appliquée sur celui-ci contre la bande de matière (103), le rouleau danseur en combinaison avec le ou les moyens moteurs pouvant être commandés par une unité de commande de telle manière que la bande de matière (103) peut subir pendant l'enroulement un effort de traction constant du moins temporairement, de préférence tout le temps.
  15. Imprimante à jet d'encre selon la revendication 13 caractérisé en ce que le rouleau danseur est déplaçable par mouvement de translation et est conçu de telle manière qu'une force, de préférence constante, est appliquée sur celui-ci contre la bande de matière (103) pour maintenir la bande de matière (103) du moins entre le rouleau danseur et le dispositif (101) dans un état raide.
EP17000264.6A 2016-03-07 2017-02-17 Dispositif d'enroulement et de déroulement d'une bande de matériau d'un noyau ou sur un noyau Active EP3216730B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUA2016A002061A ITUA20162061A1 (it) 2016-03-07 2016-03-07 Dispositivo per svolgere o avvolgere un telo di materiale da/su una bobina

Publications (3)

Publication Number Publication Date
EP3216730A1 EP3216730A1 (fr) 2017-09-13
EP3216730B1 true EP3216730B1 (fr) 2018-12-05
EP3216730B8 EP3216730B8 (fr) 2019-04-24

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ID=56235915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17000264.6A Active EP3216730B8 (fr) 2016-03-07 2017-02-17 Dispositif d'enroulement et de déroulement d'une bande de matériau d'un noyau ou sur un noyau

Country Status (3)

Country Link
EP (1) EP3216730B8 (fr)
ES (1) ES2717915T3 (fr)
IT (1) ITUA20162061A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2076500A5 (fr) * 1970-01-16 1971-10-15 Inst Textile De France
US5150850A (en) * 1991-05-10 1992-09-29 Beloit Corporation Method for winding a traveling web on a belted two drum wound web roll winder
DE4427877C1 (de) * 1994-08-06 1996-03-14 Kleinewefers Gmbh Wickelvorrichtung mit einer Wickelrolle für bahnförmiges Material
DE19630924A1 (de) * 1996-07-31 1998-02-05 Rieter Ag Maschf Wickelvorrichtung
DE19635216A1 (de) * 1996-08-30 1998-03-05 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zum Aufwickeln einer Papierbahn zu einer Rolle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ITUA20162061A1 (it) 2017-09-07
ES2717915T3 (es) 2019-06-26
EP3216730A1 (fr) 2017-09-13
EP3216730B8 (fr) 2019-04-24

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