WO2007068771A2 - Pressure roller device for a machine that is used to cut wound laminar material - Google Patents

Pressure roller device for a machine that is used to cut wound laminar material Download PDF

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Publication number
WO2007068771A2
WO2007068771A2 PCT/ES2006/000657 ES2006000657W WO2007068771A2 WO 2007068771 A2 WO2007068771 A2 WO 2007068771A2 ES 2006000657 W ES2006000657 W ES 2006000657W WO 2007068771 A2 WO2007068771 A2 WO 2007068771A2
Authority
WO
WIPO (PCT)
Prior art keywords
support bar
tread
segment
treadmill
housing
Prior art date
Application number
PCT/ES2006/000657
Other languages
Spanish (es)
French (fr)
Other versions
WO2007068771A3 (en
Inventor
Jordi Prat Gil
Agustí COMBIS PALACIOS
Original Assignee
Proslit Equipment1 Sl
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 Proslit Equipment1 Sl filed Critical Proslit Equipment1 Sl
Priority to ES06841710.4T priority Critical patent/ES2632119T3/en
Priority to PL06841710T priority patent/PL1961684T3/en
Priority to CA2633059A priority patent/CA2633059C/en
Priority to EP06841710.4A priority patent/EP1961684B1/en
Publication of WO2007068771A2 publication Critical patent/WO2007068771A2/en
Publication of WO2007068771A3 publication Critical patent/WO2007068771A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B65H18/106—Mechanisms in which power is applied to web-roll spindle for several juxtaposed strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • 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
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement 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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/044—Sensing web tension
    • 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
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/133—Limited number of active elements on common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/137—Means for varying longitudinal profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction
    • B65H2404/432—Rider roll construction involving a plurality of parallel rider rolls

Definitions

  • the present invention concerns a treadmill device applicable to a winding sheet cutting machine, useful in the graphic arts industry to compensate for fluctuations in the thickness of the sheet material being cut and wound and to avoid lateral sliding of laminar materials with a low coefficient of friction.
  • Cutting-winding machines which have means for making one or more longitudinal cuts in a flexible sheet material, unwound from a single coil, and means for rewinding the two or more resulting bands in corresponding pick-up coils. of smaller width arranged coaxially.
  • this type of machines it is known to have a single treadmill associated with a pusher device to press the various pickup coils as the cut material is wound.
  • this single roller is not able to adapt to small differences in diameter of the pickup coils due to variations in the thickness of the cut material, so it cannot guarantee that the pressure actually applied to each coil is the same.
  • each assembly comprises an articulated arm that supports the axis of the treadmill and a pneumatic cylinder arranged between a bed and the articulated arm to push the roller towards the corresponding pickup coil.
  • the mechanical assembly of the different tread rollers requires leaving separation distances between them that limit the minimum width of the pickup coils and hinder the adaptation of the tread roller system to coils of different widths.
  • this provision results in a relatively complex construction, with high manufacturing and maintenance costs.
  • the present invention contributes to overcoming the foregoing and other inconveniences by providing a treadmill device for winding sheet cutting machine, which together comprises a support shaft on which a treadmill consisting of a plurality is rotatably mounted.
  • each of said tread segments having a cylindrical outer surface facing a cylindrical outer surface of at least one coil; guide means adapted to guide movements of the tread segments in a radial direction with respect to said support axis; and a pushing means adapted to push each and every step of the guided segment in said guide means against said coil, which is at least one, so that the cylindrical outer surfaces of the tread segments are susceptible to being offset from a line center of the support bar, with different eccentricities determined individually by the contact of the cylindrical outer surface of each treadmill segment with the cylindrical outer surface of the coil.
  • said pushing means comprise a common expandable element for all the tread segments driven by a pressurized fluid to individually push the tread segments with a common pressure.
  • the device of the present invention ensures that the same pressure will be applied to each coil, which provides a uniform degree of compaction or hardness in all the coils.
  • the treadmill device of the present invention has the advantages in terms of performance of a construction of separate individual rollers of a known type, and yet, thanks to being mounted on a common support bar, it can be supported in a structure of support as simple as that used for a single roller roller of the state of the art.
  • the device of the present invention allows to increase the production time of the cutting machine, since it does not have the need to make changes of rollers to pass, for example, from a single treadmill to individual treadmills, or to make movements axes of the different tread rollers to adapt the cutting machine to different coil widths.
  • the treadmill device of the present invention including individual tread sectors, admits a smaller coil width smaller than the previously known devices.
  • Fig. 1 is an isometric view of one end of a roller device treadmill for winding sheet cutting machine according to an embodiment of the present invention
  • Fig. 2 is a cross-sectional view of the roller device of Fig. 1 with an expandable element contracted and a treadmill in a retracted position in relation to a support bar;
  • Fig. 3 is a cross-sectional view similar to Fig. 2, but with the expanded expandable element and the tread segment in an extended position in relation to the support bar; Y
  • Fig. 4 is a longitudinal sectional view of the treadmill device of Fig. 1.
  • the treadmill device for winding sheet cutting machine comprises, in accordance with an example of embodiment, a support bar 10 on which a treadmill 20 is rotatably mounted comprising a plurality of adjacent tread segments 25, very close to each other.
  • Each of said tread segments 25 has a cylindrical outer surface 21 - A - facing a cylindrical outer surface of at least one coil 30 (indicated by dashed lines in Figs. 2 and 3).
  • the cutting machine incorporates several pick-up coils 30 for collecting and winding respective bands of material cut from a wider band from a single input coil (not shown).
  • the various pickup coils 30 are coaxial with respect to an axis parallel to a central line 15 of the support bar 10, and each treadmill segment 25 may correspond to one of the pickup coils 30, or there may be several treadmill segments 25 for each of the various pickup coils 30.
  • the cutting machine has means for moving the support bar 10 towards the pickup coils 30 to bring the tread segments 25 into contact with them.
  • the device of the present invention further comprises guide means adapted to guide movements of the tread segments 25 in a radial direction with respect to said support bar 10, and thrust means adapted to individually and independently push each guided tread segment 25 in said guiding means against said coil 30, which is at least one.
  • the cylindrical outer surfaces 21 of the tread segments 25 are susceptible to being offset with respect to a central line 15 of the support bar 10 to compensate for differences in diameter in the various pickup coils 30 produced by possible fluctuations in the thickness of the material laminar that is being cut and wound.
  • the pressure exerted by the tread segments 25 on the pick-up coils 30 also serves to provide a certain degree of compaction or hardness to the coils and to prevent lateral sliding of sheet materials with a low coefficient of friction.
  • each of the tread segments 25 is determined individually by the contact of the cylindrical outer surface 21 of each treadmill segment 25 with a cylindrical outer surface of the coil 30.
  • said thrust means comprising an expandable element 60 driven by a pressurized fluid, common to all the tread segments 25, the tread segments 25 are pushed individually against the pickup coils 30 with a single pressure common to all of them.
  • the support bar 10 is generally cylindrical and has two flat outer faces 11 diametrically opposite, parallel to each other and parallel to the center line 15 of the support bar 10. These two flat outer faces 11 are in sliding contact with corresponding parallel flat inner faces 41 formed in a cavity 42 of a core 40 on which the tread segment 25 rotates, so that said core 40 together with the tread segment 25 can be displaced radially with respect to the bar of support 10.
  • the flat exterior faces 11 of the support bar in conjunction with the aforementioned flat interiors 41 of said core 40 constitute the guiding means referred to above.
  • Said pushing means comprise, in addition to said expandable element 60, at least one pusher member 50 for each tread segment 25.
  • This pusher member 50 is located between the support bar 10 and the core 40 of the corresponding tread segment 25, and the expandable element 60 is located along the support bar 10 between the support bar 10 and all the pushing members 50.
  • the said pressurized fluid is preferably pressurized air, although it could be any other gas or even a liquid.
  • the expandable element 60 is substantially empty of fluid and adopts a contracted form, whereby the pusher member 50 is retracted and the tread segment 25 can also assume a retracted position in relation to the bar of support 10.
  • the expandable element 60 is filled with fluid at a certain pressure, so it is expanded to a certain extent. The expansion of the expandable element 60 individually pushes all the pushing members 50 against the respective cores 40 and these move radially together with the respective tread segments 25 to an extended position in relation to the support bar 10, in which the cylindrical outer surfaces of the tread segments 25 are in contact with the corresponding pickup coils 30.
  • the expansion of the expandable element 60 allows the degree
  • the extension of each of the different tread segments 25 was adapted to the particular diameter of the corresponding pick-up coil 30 and, however, the pressure exerted by the expandable element 60 is common and uniform for all the tread segments 25.
  • the support bar 10 has along it a housing 12 in the form of a groove with a longitudinal opening located between said two flat outer faces 11 of the support bar 10.
  • Each of the pushing members 50 comprises a guide portion 51 inserted in said housing 12 of the support bar 10 so that it can slide out and into it in a direction parallel to the two flat outer faces 11 of the support bar 10.
  • the pusher member 50 also it comprises an protruding portion 52 having an end adapted to press against an inner surface of said cavity 42 of the core 40 of the tread segment 25 when the pusher member 50 is displaced out of the housing 12.
  • the expandable element 60 is in the form of a expandable sleeve 60 disposed along the housing 12 from one end to the other of the support bar 10, between a bottom surface of the housing ento 12 and an end surface of each of said guide portions 51 of the pusher members 50.
  • the expandable sleeve 60 can be connected to a source of pressurized fluid through valve means associated with the support bar 10, and said valve means can be closed to retain a quantity of fluid at a predetermined pressure within the expandable sleeve 60.
  • flanges are formed directed towards each other that interfere with projections 53 formed next to an inner end of the guide portion 51 of each pusher member 50 Thanks to this, the pushing members 50 are retained in the housing 12 with the possibility of a sliding limited by the interference of the flanges of the housing 12 with the projections 53 of the pushing members 50.
  • the support bar 10 has ends protruding from the treadmill 20, and, at least one of these projecting ends of the support bar 10 (shown in Fig. 1), the longitudinal opening of the housing 12 has a widening 13 of a sufficient size to allow the passage of the projections 53 of the guide portions 51 of the pushing members 50.
  • the pusher members 50 can be introduced one after the other through said widening 13 and then slid along the housing 12 to its operative position.
  • a stop 14 is fixed whose purpose is to effect a retention of the pushing members 50 inside the housing 12 of the support bar 10 once introduced, preventing their displacement in the direction of the central line 15.
  • each tread segment 25 comprises a cover 21a, of a material suitable for providing the cylindrical outer surface 21, fixed on a structural sleeve 29, which is rotatably mounted on its corresponding core 40 by means of a pair of bearings 26, which are of a type adapted to further effect a retention of the tread segment 25 on its corresponding core 40 against a displacement in an axial direction.
  • a pair of bearings 26 which are of a type adapted to further effect a retention of the tread segment 25 on its corresponding core 40 against a displacement in an axial direction.
  • spacers 27 are arranged in the form of blocks of a material of a low coefficient of friction fixed to the core 40 of one of the two adjacent tread segments 25 by means of screws 42.
  • Each of these separators 27 are in sliding contact with a lateral surface of the core 40 of the other of the two adjacent tread segments 25 to allow displacements of the tread segments 25 in the radial direction along the guide means described above while guarantee a minimum clearance clearance between adjacent tread segments 25.
  • one or more stops 28 are fixed to one of the flat outer faces 11 of the support bar 10 by means of screws 16.
  • stops 28 are in contact sliding with a lateral surface of the core 40 of the corresponding tread segment 25 and effect a retention of the set of tread segments 25 that make up the tread roller 20 in the face of displacements in the axial direction while allowing displacements of the tread segments 25 of the ends in the radial direction.

Abstract

The invention relates to a pressure roller device for a machine that is used to cut wound laminar material. The inventive device includes a support bar (10) to which a pressure roller (20) is rotatably mounted, said pressure roller comprising a plurality of adjacent pressure segments (25) which each have an outer cylindrical surface (21) that is disposed opposite a roll (30). The invention also includes guide means for guiding the movements of the pressure segments (25) radially in relation to the support bar (10) and push means for individually and independently pushing each pressure segment (25) that is guided by the guide means against the roll (30). The outer cylindrical surfaces (21) of the pressure segments (25) can be positioned off-centre in relation to a central line (15) of the support bar (10) with different eccentricities which are each pre-determined by the contact between the outer cylindrical surface (21) of each pressure segment (25) and the roll (30).

Description

DISPOSITIVO DE RODILLO PISADOR PARA MÁQUINA CORTADORA DE PISTOR ROLLER DEVICE FOR CUTTING MACHINE
MATERIAL LAMINAR BOBINADOWINDING LAMINAR MATERIAL
Campo de Ia técnica La presente invención concierne a un dispositivo de rodillo pisador aplicable a un máquina cortadora de material laminar bobinado, útil en Ia industria de las artes gráficas para compensar fluctuaciones en el grosor del material laminar que está siendo cortado y bobinado y para evitar el deslizamiento lateral de materiales laminares con un bajo coeficiente de fricción.Field of the technique The present invention concerns a treadmill device applicable to a winding sheet cutting machine, useful in the graphic arts industry to compensate for fluctuations in the thickness of the sheet material being cut and wound and to avoid lateral sliding of laminar materials with a low coefficient of friction.
Estado de Ia técnica anteriorState of the prior art
Se conocen máquinas cortadoras-bobinadoras que disponen de unos medios para efectuar uno o más cortes longitudinales en un material laminar flexible, desenrollado a partir de una única bobina, y unos medios para volver a enrollar las dos o más bandas resultantes en unas correspondientes bobinas recogedoras de menor anchura dispuestas coaxialmente. En este tipo de máquinas se conoce disponer un único rodillo pisador asociado a un dispositivo empujador para presionar las varias bobinas recogedoras a medida que el material cortado es bobinado. Sin embargo, este rodillo único no es capaz de adaptarse a pequeñas diferencias de diámetro de las bobinas recogedoras debidas a variaciones en el grosor del material cortado, por Io que no puede garantizar que Ia presión aplicada realmente a cada bobina sea Ia misma.Cutting-winding machines are known which have means for making one or more longitudinal cuts in a flexible sheet material, unwound from a single coil, and means for rewinding the two or more resulting bands in corresponding pick-up coils. of smaller width arranged coaxially. In this type of machines it is known to have a single treadmill associated with a pusher device to press the various pickup coils as the cut material is wound. However, this single roller is not able to adapt to small differences in diameter of the pickup coils due to variations in the thickness of the cut material, so it cannot guarantee that the pressure actually applied to each coil is the same.
También se conoce disponer varios conjuntos independientes de rodillo pisador y dispositivo empujador para poder dar presiones substancialmente iguales independientemente a cada una de las varias bobinas recogedoras. En este caso, cada conjunto comprende un brazo articulado que soporte el eje del rodillo pisador y un cilindro neumático dispuesto entre una bancada y el brazo articulado para empujar el rodillo hacia Ia correspondiente bobina recogedora. Sin embargo, el montaje mecánico de los distintos rodillos pisadores exige dejar unas distancias de separación entre los mismos que limitan el ancho mínimo de las bobinas recogedoras y dificultan Ia adaptación del sistema de rodillos pisadores a bobinas de diferentes anchuras. Por otra parte, esta disposición resulta en una construcción relativamente compleja, con unos costes de fabricación y mantenimiento elevados.It is also known to have several independent sets of treadmill and pusher device to be able to give substantially equal pressures independently to each of the various pickup coils. In this case, each assembly comprises an articulated arm that supports the axis of the treadmill and a pneumatic cylinder arranged between a bed and the articulated arm to push the roller towards the corresponding pickup coil. However, the mechanical assembly of the different tread rollers requires leaving separation distances between them that limit the minimum width of the pickup coils and hinder the adaptation of the tread roller system to coils of different widths. Moreover, this provision It results in a relatively complex construction, with high manufacturing and maintenance costs.
Exposición de Ia invención La presente invención contribuye a superar los anteriores y otros inconvenientes aportando un dispositivo de rodillo pisador para máquina cortadora de material laminar bobinado, que comprende en conjunto un eje de soporte sobre el que está montado giratoriamente un rodillo pisador compuesto por un pluralidad de segmentos pisadores adyacentes, teniendo cada uno de dichos segmentos pisadores una superficie exterior cilindrica enfrentada a una superficie exterior cilindrica de al menos una bobina; unos medios de guía adaptados para guiar unos desplazamientos de los segmentos pisadores en una dirección radial respecto a dicho eje de soporte; y unos medios de empuje adaptados para empujar individual e independientemente cada segmento pisador guiado en dichos medios de guía contra dicha bobina, que es al menos una, con Io que las superficies exteriores cilindricas de ios segmentos pisadores son susceptibles de quedar descentradas respecto a una línea central de Ia barra de soporte, con excentricidades diferentes determinadas individualmente por el contacto de Ia superficie exterior cilindrica de cada segmento pisador con Ia superficie exterior cilindrica de Ia bobina.DISCLOSURE OF THE INVENTION The present invention contributes to overcoming the foregoing and other inconveniences by providing a treadmill device for winding sheet cutting machine, which together comprises a support shaft on which a treadmill consisting of a plurality is rotatably mounted. of adjacent tread segments, each of said tread segments having a cylindrical outer surface facing a cylindrical outer surface of at least one coil; guide means adapted to guide movements of the tread segments in a radial direction with respect to said support axis; and a pushing means adapted to push each and every step of the guided segment in said guide means against said coil, which is at least one, so that the cylindrical outer surfaces of the tread segments are susceptible to being offset from a line center of the support bar, with different eccentricities determined individually by the contact of the cylindrical outer surface of each treadmill segment with the cylindrical outer surface of the coil.
Ventajosamente, los mencionados medios de empuje comprenden un elemento expansible común para todos los segmentos pisadores accionado por un fluido a presión para empujar individualmente los segmentos pisadores con una presión común. Con esta construcción, el dispositivo de Ia presente invención asegura que en cada bobina será aplicada Ia misma presión, Io que proporciona un grado de compactación o dureza uniforme en todas las bobinas.Advantageously, said pushing means comprise a common expandable element for all the tread segments driven by a pressurized fluid to individually push the tread segments with a common pressure. With this construction, the device of the present invention ensures that the same pressure will be applied to each coil, which provides a uniform degree of compaction or hardness in all the coils.
El dispositivo de rodillo pisador de Ia presente invención tiene las ventajas en cuanto a prestaciones de una construcción de rodillos individuales separados de un tipo conocido, y sin embargo, gracias a estar montado en una barra de soporte común, puede ser sustentado en una estructura de soporte tan simple como Ia utilizada para un único rodillo pisador del estado de Ia técnica. Además, el dispositivo de Ia presente invención permite aumentar el tiempo de producción de Ia máquina cortadora, puesto que no tiene Ia necesidad de efectuar cambios de rodillos para pasar, por ejemplo, de un único rodillo pisador a rodillos pisadores individuales, ni de realizar movimientos axiales de los distintos rodillos pisadores para adecuar Ia máquina cortadora a distintos anchos de bobina.The treadmill device of the present invention has the advantages in terms of performance of a construction of separate individual rollers of a known type, and yet, thanks to being mounted on a common support bar, it can be supported in a structure of support as simple as that used for a single roller roller of the state of the art. In addition, the device of the present invention allows to increase the production time of the cutting machine, since it does not have the need to make changes of rollers to pass, for example, from a single treadmill to individual treadmills, or to make movements axes of the different tread rollers to adapt the cutting machine to different coil widths.
El dispositivo de rodillo pisador de Ia presente invención, incluyendo sectores pisadores individuales, admite un ancho mínimo de bobina más reducido que los dispositivos conocidos anteriormente.The treadmill device of the present invention, including individual tread sectors, admits a smaller coil width smaller than the previously known devices.
Breve descripción de los dibujosBrief description of the drawings
Las anteriores y otras ventajas y características se comprenderán más plenamente a partir de Ia siguiente descripción detallada de un ejemplo de realización con referencia a los dibujos adjuntos, en los que: Ia Fig. 1 es una vista isométrica de un extremo de un dispositivo de rodillo pisador para máquina cortadora de material laminar bobinado de acuerdo con un ejemplo de realización de Ia presente invención;The foregoing and other advantages and features will be more fully understood from the following detailed description of an exemplary embodiment with reference to the attached drawings, in which: Fig. 1 is an isometric view of one end of a roller device treadmill for winding sheet cutting machine according to an embodiment of the present invention;
Ia Fig. 2 es una vista en sección transversal del dispositivo de rodillo de Ia Fig. 1 con un elemento expansible contraído y un segmento pisador en una posición retraída en relación con una barra de soporte;Fig. 2 is a cross-sectional view of the roller device of Fig. 1 with an expandable element contracted and a treadmill in a retracted position in relation to a support bar;
Ia Fig. 3 es una vista en sección transversal similar a Ia Fig. 2, pero con el elemento expansible expandido y el segmento pisador en una posición extendida en relación con Ia barra de soporte; yFig. 3 is a cross-sectional view similar to Fig. 2, but with the expanded expandable element and the tread segment in an extended position in relation to the support bar; Y
Ia Fig. 4 es una vista en sección longitudinal del dispositivo de rodillo pisador de Ia Fig. 1.Fig. 4 is a longitudinal sectional view of the treadmill device of Fig. 1.
Descripción detallada de un ejemplo de realizaciónDetailed description of an embodiment example
Haciendo referencia en primer lugar a Ia Fig. 1 , el dispositivo de rodillo pisador para máquina cortadora de material laminar bobinado comprende, de acuerdo con un ejemplo de realización, una barra de soporte 10 sobre Ia que está montado giratoriamente un rodillo pisador 20 compuesto por un pluralidad de segmentos pisadores 25 adyacentes, muy próximos entre sí. Cada uno de dichos segmentos pisadores 25 tiene una superficie exterior cilindrica 21 - A - enfrentada a una superficie exterior cilindrica de al menos una bobina 30 (indicada mediante líneas de trazos en las Figs. 2 y 3). En general Ia máquina cortadora incorpora varias bobinas recogedoras 30 para recoger y bobinar respectivas bandas de material cortadas a partir de una banda más ancha procedente de una única bobina de entrada (no mostrada). Las varias bobinas recogedores 30 son coaxiales respecto a un eje paralelo a una línea central 15 de Ia barra de soporte 10, y cada segmento pisador 25 puede corresponder a una de las bobinas recogedoras 30, o puede haber varios segmentos pisadores 25 para cada una de las varias bobinas recogedoras 30. La máquina cortadora dispone de unos medios para desplazar Ia barra de soporte 10 hacia las bobinas recogedoras 30 para poner en contacto los segmentos pisadores 25 con las mismas.Referring firstly to Fig. 1, the treadmill device for winding sheet cutting machine comprises, in accordance with an example of embodiment, a support bar 10 on which a treadmill 20 is rotatably mounted comprising a plurality of adjacent tread segments 25, very close to each other. Each of said tread segments 25 has a cylindrical outer surface 21 - A - facing a cylindrical outer surface of at least one coil 30 (indicated by dashed lines in Figs. 2 and 3). In general, the cutting machine incorporates several pick-up coils 30 for collecting and winding respective bands of material cut from a wider band from a single input coil (not shown). The various pickup coils 30 are coaxial with respect to an axis parallel to a central line 15 of the support bar 10, and each treadmill segment 25 may correspond to one of the pickup coils 30, or there may be several treadmill segments 25 for each of the various pickup coils 30. The cutting machine has means for moving the support bar 10 towards the pickup coils 30 to bring the tread segments 25 into contact with them.
El dispositivo de Ia presente invención comprende además unos medios de guía adaptados para guiar unos desplazamientos de los segmentos pisadores 25 en una dirección radial respecto a dicha barra de soporte 10, y unos medios de empuje adaptados para empujar individual e independientemente cada segmento pisador 25 guiado en dichos medios de guía contra dicha bobina 30, que es al menos una. Con ello, las superficies exteriores cilindricas 21 de los segmentos pisadores 25 son susceptibles de quedar descentradas respecto a una línea central 15 de Ia barra de soporte 10 para compensar diferencias de diámetro en las varias bobinas recogedoras 30 producidas por posibles fluctuaciones en el grosor del material laminar que está siendo cortado y bobinado. La presión que ejercen los segmentos pisadores 25 sobre las bobinas recogedoras 30 sirve además para proporcionar un determinado grado de compactación o dureza a las bobinas y para evitar el deslizamiento lateral de materiales laminares con un bajo coeficiente de fricción. El grado de excentricidad de cada uno de los segmentos pisadores 25 está determinado individualmente por el contacto de Ia superficie exterior cilindrica 21 de cada segmento pisador 25 con una superficie exterior cilindrica de Ia bobina 30. Sin embargo, gracias a que dichos medios de empuje comprenden un elemento expansible 60 accionado por un fluido a presión, común para todos los segmentos pisadores 25, los segmentos pisadores 25 son empujados individualmente contra las bobinas recogedoras 30 con una única presión común a todos ellos.The device of the present invention further comprises guide means adapted to guide movements of the tread segments 25 in a radial direction with respect to said support bar 10, and thrust means adapted to individually and independently push each guided tread segment 25 in said guiding means against said coil 30, which is at least one. With this, the cylindrical outer surfaces 21 of the tread segments 25 are susceptible to being offset with respect to a central line 15 of the support bar 10 to compensate for differences in diameter in the various pickup coils 30 produced by possible fluctuations in the thickness of the material laminar that is being cut and wound. The pressure exerted by the tread segments 25 on the pick-up coils 30 also serves to provide a certain degree of compaction or hardness to the coils and to prevent lateral sliding of sheet materials with a low coefficient of friction. The degree of eccentricity of each of the tread segments 25 is determined individually by the contact of the cylindrical outer surface 21 of each treadmill segment 25 with a cylindrical outer surface of the coil 30. However, thanks to said thrust means comprising an expandable element 60 driven by a pressurized fluid, common to all the tread segments 25, the tread segments 25 are pushed individually against the pickup coils 30 with a single pressure common to all of them.
Tal como se muestra mejor en las Figs. 2 y 3, Ia barra de soporte 10 es de forma en general cilindrica y tiene formadas dos caras exteriores planas 11 diametralmente opuestas, paralelas entre sí y paralelas a la línea central 15 de Ia barra de soporte 10. Estas dos caras exteriores planas 11 están en contacto deslizante con unas correspondientes caras interiores planas 41 paralelas formadas en una cavidad 42 de un núcleo 40 sobre el que gira el segmento pisador 25, de manera que dicho núcleo 40 junto con el segmento pisador 25 puede ser desplazado radialmente respecto a Ia barra de soporte 10. Las caras exteriores planas 11 de Ia barra de soporte en conjunción con las citadas interiores planas 41 de dicho núcleo 40 constituyen los medios de guía a los que se ha hecho referencia más arriba. Los mencionados medios de empuje comprenden, además de dicho elemento expansible 60, al menos un miembro empujador 50 para cada segmento pisador 25. Este miembro empujador 50 está situado entre Ia barra de soporte 10 y el núcleo 40 del correspondiente segmento pisador 25, y el elemento expansible 60 está situado a Io largo de Ia barra de soporte 10 entre Ia barra de soporte 10 y todos los miembros empujadores 50. El mencionado fluido a presión es preferiblemente aire a presión, aunque podría ser cualquier otro gas o incluso un líquido.As best shown in Figs. 2 and 3, the support bar 10 is generally cylindrical and has two flat outer faces 11 diametrically opposite, parallel to each other and parallel to the center line 15 of the support bar 10. These two flat outer faces 11 are in sliding contact with corresponding parallel flat inner faces 41 formed in a cavity 42 of a core 40 on which the tread segment 25 rotates, so that said core 40 together with the tread segment 25 can be displaced radially with respect to the bar of support 10. The flat exterior faces 11 of the support bar in conjunction with the aforementioned flat interiors 41 of said core 40 constitute the guiding means referred to above. Said pushing means comprise, in addition to said expandable element 60, at least one pusher member 50 for each tread segment 25. This pusher member 50 is located between the support bar 10 and the core 40 of the corresponding tread segment 25, and the expandable element 60 is located along the support bar 10 between the support bar 10 and all the pushing members 50. The said pressurized fluid is preferably pressurized air, although it could be any other gas or even a liquid.
En Ia situación mostrada en Ia Fig. 2, el elemento expansible 60 está substancialmente vacío de fluido y adopta una forma contraída, por Io que el miembro empujador 50 está retraído y el segmento pisador 25 puede adoptar una posición también retraída en relación con Ia barra de soporte 10. En Ia situación mostrada en Ia Fig. 3, el elemento expansible 60 está lleno de fluido a una determinada presión, por Io que está expandido hasta cierto punto. La expansión del elemento expansible 60 empuja individualmente todos los miembros empujadores 50 contra los respectivos núcleos 40 y estos se desplazan radialmente junto con los respectivos segmentos pisadores 25 hasta una posición extendida en relación con Ia barra de soporte 10, en Ia que las superficies exteriores cilindricas de los segmentos pisadores 25 están en contacto con las correspondientes bobinas recogedoras 30. Durante el funcionamiento, Ia expansión del elemento expansible 60 permite que el grado de extensión de cada uno de los diferentes segmentos pisadores 25 se adecué ai diámetro particular de Ia correspondiente bobina recogedora 30 y, sin embargo, Ia presión ejercida por el elemento expansible 60 es común y uniforme para todos los segmentos pisadores 25. Hay que señalar que, aunque en las Figs. 2 y 3 se han representado las posiciones límite retraída y extendida, respectivamente, durante un funcionamiento real los segmentos pisadores 25 oscilarán entre unas posiciones retraída y extendida intermedias sin alcanzar, salvo situaciones excepcionales, las mencionadas posiciones límite retraída y extendida. La barra de soporte 10 tiene formado a Io largo de Ia misma un alojamiento 12 en Ia forma de una acanaladura con una abertura longitudinal situada entre dichas dos caras exteriores planas 11 de Ia barra de soporte 10. Cada uno de los miembros empujadores 50 comprende una porción de guía 51 insertada en dicho alojamiento 12 de Ia barra de soporte 10 de manera que puede deslizar hacia fuera y hacia dentro del mismo en una dirección paralela a las dos caras exteriores planas 11 de Ia barra de soporte 10. El miembro empujador 50 también comprende una porción sobresaliente 52 que tiene un extremo adaptado para presionar contra una superficie interior de Ia mencionada cavidad 42 del núcleo 40 del segmento pisador 25 cuando el miembro empujador 50 es desplazado hacia fuera del alojamiento 12. El elemento expansible 60 tiene Ia forma de una manga expansible 60 dispuesta a Io largo del alojamiento 12 de un extremo a otro de Ia barra de soporte 10, entre una superficie de fondo del alojamiento 12 y una superficie final de cada una de dichas porciones de guía 51 de los miembros empujadores 50. La manga expansible 60 puede ser conectada a una fuente de fluido a presión a través de unos medios de válvula asociados a Ia barra de soporte 10, y dichos medios de válvula pueden ser cerrados para retener una cantidad de fluido a una presión predeterminada dentro de Ia manga expansible 60.In the situation shown in Fig. 2, the expandable element 60 is substantially empty of fluid and adopts a contracted form, whereby the pusher member 50 is retracted and the tread segment 25 can also assume a retracted position in relation to the bar of support 10. In the situation shown in Fig. 3, the expandable element 60 is filled with fluid at a certain pressure, so it is expanded to a certain extent. The expansion of the expandable element 60 individually pushes all the pushing members 50 against the respective cores 40 and these move radially together with the respective tread segments 25 to an extended position in relation to the support bar 10, in which the cylindrical outer surfaces of the tread segments 25 are in contact with the corresponding pickup coils 30. During operation, the expansion of the expandable element 60 allows the degree The extension of each of the different tread segments 25 was adapted to the particular diameter of the corresponding pick-up coil 30 and, however, the pressure exerted by the expandable element 60 is common and uniform for all the tread segments 25. It should be noted that , although in Figs. 2 and 3 the retracted and extended limit positions have been represented, respectively, during actual operation the tread segments 25 will oscillate between intermediate retracted and extended positions without reaching, except in exceptional situations, the aforementioned retracted and extended limit positions. The support bar 10 has along it a housing 12 in the form of a groove with a longitudinal opening located between said two flat outer faces 11 of the support bar 10. Each of the pushing members 50 comprises a guide portion 51 inserted in said housing 12 of the support bar 10 so that it can slide out and into it in a direction parallel to the two flat outer faces 11 of the support bar 10. The pusher member 50 also it comprises an protruding portion 52 having an end adapted to press against an inner surface of said cavity 42 of the core 40 of the tread segment 25 when the pusher member 50 is displaced out of the housing 12. The expandable element 60 is in the form of a expandable sleeve 60 disposed along the housing 12 from one end to the other of the support bar 10, between a bottom surface of the housing ento 12 and an end surface of each of said guide portions 51 of the pusher members 50. The expandable sleeve 60 can be connected to a source of pressurized fluid through valve means associated with the support bar 10, and said valve means can be closed to retain a quantity of fluid at a predetermined pressure within the expandable sleeve 60.
En unos bordes opuestos de Ia abertura longitudinal del alojamiento 12 de Ia barra de soporte 10 están formados unos rebordes dirigidos el uno hacia el otro que interfieren con unos resaltos 53 formados junto a un extremo interior de Ia porción de guía 51 de cada miembro empujador 50. Gracias a ello, los miembros empujadores 50 están retenidos en el alojamiento 12 con posibilidad de un deslizamiento limitado por Ia interferencia de los rebordes del alojamiento 12 con los resaltos 53 de los miembros empujadores 50. La barra de soporte 10 tiene unos extremos que sobresalen del rodillo pisador 20, y, en al menos uno de estos extremos sobresalientes de Ia barra de soporte 10 (mostrado en Ia Fig. 1), Ia abertura longitudinal del alojamiento 12 presenta un ensanchamiento 13 de un tamaño suficiente para permitir el paso de los resaltos 53 de las porciones de guía 51 de los miembros empujadores 50. Así, para el montaje del dispositivo de rodillo pisador de Ia presente invención, los miembros empujadores 50 pueden ser introducidos uno tras otro a través del mencionado ensanchamiento 13 y deslizados luego a Io largo del alojamiento 12 hasta su posición operativa. En el interior de una porción del alojamiento 12 situada en el extremo sobresaliente de Ia barra de soporte 10 y enfrentada a dicho ensanchamiento 13, está fijado un tope 14 cuya finalidad es Ia de efectuar una retención de los miembros empujadores 50 en el interior del alojamiento 12 de Ia barra de soporte 10 una vez introducidos, impidiendo un desplazamiento de los mismos en Ia dirección de Ia línea central 15.At opposite edges of the longitudinal opening of the housing 12 of the support bar 10, flanges are formed directed towards each other that interfere with projections 53 formed next to an inner end of the guide portion 51 of each pusher member 50 Thanks to this, the pushing members 50 are retained in the housing 12 with the possibility of a sliding limited by the interference of the flanges of the housing 12 with the projections 53 of the pushing members 50. The support bar 10 has ends protruding from the treadmill 20, and, at least one of these projecting ends of the support bar 10 (shown in Fig. 1), the longitudinal opening of the housing 12 has a widening 13 of a sufficient size to allow the passage of the projections 53 of the guide portions 51 of the pushing members 50. Thus, for the assembly of the roller roller device of the present invention, the pusher members 50 can be introduced one after the other through said widening 13 and then slid along the housing 12 to its operative position. Inside a portion of the housing 12 located at the protruding end of the support bar 10 and facing said widening 13, a stop 14 is fixed whose purpose is to effect a retention of the pushing members 50 inside the housing 12 of the support bar 10 once introduced, preventing their displacement in the direction of the central line 15.
Haciendo referencia ahora a Ia Fig. 4, cada segmento pisador 25 comprende una cubierta 21a, de un material adecuado para proporcionar Ia superficie exterior cilindrica 21 , fijada sobre un manguito estructural 29, el cual está montado de manera giratoria sobre su correspondiente núcleo 40 por medio de un par de rodamientos 26, los cuales son de un tipo adaptado para efectuar además una retención del segmento pisador 25 sobre su correspondiente núcleo 40 frente a un desplazamiento en una dirección axial. Entre cada dos segmentos pisadores 25 adyacentes están dispuestos uno o más separadores 27 en Ia forma de unos tacos de un material de un bajo coeficiente de fricción fijados al núcleo 40 de uno de los dos segmentos pisadores 25 adyacentes mediante unos tornillos 42. Cada uno de estos separadores 27 está en contacto deslizante con una superficie lateral del núcleo 40 del otro de los dos segmentos pisadores 25 adyacentes para permitir unos desplazamientos de los segmentos pisadores 25 en Ia dirección radial a Io largo de los medios de guía descritos más arriba al tiempo que garantizan una holgura de separación mínima entre los segmentos pisadores 25 adyacentes. Junto a cada uno de los dos segmentos pisadores 25 situados en los extremos del rodillo pisador 20 (sólo uno de los cuales se muestra en Ia Fig. 4) están dispuestos uno o más topes 28 fijados a una de las caras exteriores planas 11 de Ia barra de soporte 10 mediante unos tornillos 16. Estos topes 28 están en contacto deslizante con una superficie lateral del núcleo 40 del correspondiente segmento pisador 25 y efectúan una retención del conjunto de segmentos pisadores 25 que componen el rodillo pisador 20 frente a unos desplazamientos en Ia dirección axial al tiempo que permiten desplazamientos de los segmentos pisadores 25 de los extremos en Ia dirección radial.Referring now to Fig. 4, each tread segment 25 comprises a cover 21a, of a material suitable for providing the cylindrical outer surface 21, fixed on a structural sleeve 29, which is rotatably mounted on its corresponding core 40 by means of a pair of bearings 26, which are of a type adapted to further effect a retention of the tread segment 25 on its corresponding core 40 against a displacement in an axial direction. Between each two adjacent tread segments 25, one or more spacers 27 are arranged in the form of blocks of a material of a low coefficient of friction fixed to the core 40 of one of the two adjacent tread segments 25 by means of screws 42. Each of these separators 27 are in sliding contact with a lateral surface of the core 40 of the other of the two adjacent tread segments 25 to allow displacements of the tread segments 25 in the radial direction along the guide means described above while guarantee a minimum clearance clearance between adjacent tread segments 25. Next to each of the two tread segments 25 located at the ends of the treadmill 20 (only one of which is shown in Fig. 4) one or more stops 28 are fixed to one of the flat outer faces 11 of the support bar 10 by means of screws 16. These stops 28 are in contact sliding with a lateral surface of the core 40 of the corresponding tread segment 25 and effect a retention of the set of tread segments 25 that make up the tread roller 20 in the face of displacements in the axial direction while allowing displacements of the tread segments 25 of the ends in the radial direction.
Un experto en Ia materia será capaz de introducir variaciones y modificaciones en el ejemplo de realización mostrado y descrito sin salirse del alcance de Ia presente invención según está definido en las reivindicaciones adjuntas. A person skilled in the art will be able to introduce variations and modifications in the exemplary embodiment shown and described without departing from the scope of the present invention as defined in the appended claims.

Claims

REIVIND1CAC1ONESREIVIND1CAC1ONES
1.- Dispositivo de rodillo pisador para máquina cortadora de material laminar bobinado, que comprende en conjunto: una barra de soporte (10) sobre Ia que está montado giratoriamente un rodillo pisador (20) compuesto por un pluralidad de segmentos pisadores (25) adyacentes, teniendo cada uno de dichos segmentos pisadores (25) una superficie exterior cilindrica (21) enfrentada a una superficie exterior cilindrica de al menos una bobina (30); unos medios de guía adaptados para guiar unos desplazamientos de los segmentos pisadores (25) en una dirección radial respecto a dicha barra de soporte (10); y unos medios de empuje adaptados para empujar individual e independientemente cada segmento pisador (25) guiado en dichos medios de guía contra dicha bobina (30), que es al menos una, con Io que dichas superficies exteriores cilindricas (21) de los segmentos pisadores (25) son susceptibles de quedar descentradas respecto a una línea central (15) de Ia barra de soporte (10) con excentricidades diferentes determinadas individualmente por el contacto de Ia superficie exterior cilindrica (21) de cada segmento pisador (25) con una superficie exterior cilindrica de Ia bobina (30).1.- Treadmill device for winding laminar material cutting machine, comprising as a whole: a support bar (10) on which a treadmill (20) is rotatably mounted composed of a plurality of adjacent treadmills (25) , each of said tread segments (25) having a cylindrical outer surface (21) facing a cylindrical outer surface of at least one coil (30); guide means adapted to guide movements of the tread segments (25) in a radial direction with respect to said support bar (10); and a pushing means adapted to push each tread segment (25) individually and independently guided in said guiding means against said coil (30), which is at least one, so that said cylindrical outer surfaces (21) of the tread segments (25) are likely to be offset with respect to a central line (15) of the support bar (10) with different eccentricities determined individually by the contact of the cylindrical outer surface (21) of each treadmill segment (25) with a surface cylindrical exterior of the coil (30).
2.- Dispositivo, de acuerdo con Ia reivindicación 1 , caracterizado porque dichos medios de empuje comprenden un elemento expansible (60) accionado por un fluido a presión para empujar individualmente los segmentos pisadores (25) con una presión común. 3.- Dispositivo, de acuerdo con Ia reivindicación 2, caracterizado porque dichos medios de guía comprenden dos caras exteriores planas (11) paralelas formadas en Ia barra de soporte (10) y en contacto deslizante con unas correspondientes caras interiores planas (41) paralelas formadas en una cavidad (42) de un núcleo (40) sobre el que gira el segmento pisador (25), de manera que dicho núcleo (40) junto con el segmento pisador (25) puede ser desplazado radialmente respecto a Ia barra de soporte (10).2. Device, according to claim 1, characterized in that said pushing means comprise an expandable element (60) actuated by a pressurized fluid to individually push the tread segments (25) with a common pressure. 3. Device according to claim 2, characterized in that said guide means comprise two parallel flat outer faces (11) formed in the support bar (10) and in sliding contact with corresponding parallel flat inner faces (41) formed in a cavity (42) of a core (40) on which the tread segment (25) rotates, so that said core (40) together with the tread segment (25) can be displaced radially with respect to the support bar (10)
A - Dispositivo, de acuerdo con Ia reivindicación 3, caracterizado porque dichos medios de empuje comprenden además, para cada segmento pisador (25), al menos un miembro empujador (50) situado entre Ia barra de soporte (10) y el núcleo (40) del segmento pisador (25), estando dicho elemento expansible (60) situado a Io largo de Ia barra de soporte (10) entre Ia barra de soporte (10) y dichos miembros empujadores (50) para empujar individualmente los miembros empujadores (50) contra los correspondientes núcleos (40) con una presión común, y con ello desplazar radialmente los correspondientes segmentos pisadores (25) respecto a Ia barra de soporte (10).A - Device, according to claim 3, characterized in that said pushing means further comprise, for each treadmill segment (25), at least one pusher member (50) located between the support bar (10) and the core (40) of the tread segment (25), said expandable element (60) being located along the support bar (10) between the support bar (10) and said pushing members (50) to individually push the pushing members (50) against the corresponding cores (40) with a common pressure, and thereby radially displacing the corresponding tread segments (25) ) with respect to the support bar (10).
5.- Dispositivo, de acuerdo con Ia reivindicación 4, caracterizado porque Ia barra de soporte (10) tiene formado a Io largo de Ia misma un alojamiento (12) que tiene una abertura longitudinal situada entre dichas dos caras exteriores planas (11), y cada uno de los miembros empujadores (50) comprende una porción de guía (51) insertada en dicho alojamiento (12) de Ia barra de soporte (10) de manera que puede deslizar hacia fuera y hacia dentro del mismo en una dirección paralela a las dos caras exteriores planas (11) de Ia barra de soporte (10), y una porción sobresaliente (52) adaptada para presionar contra una superficie interior de dicha cavidad (42) del núcleo (40) del segmento pisador (25) cuando dicho miembro empujador (50) es desplazado hacia fuera del alojamiento (12).5. Device according to claim 4, characterized in that the support bar (10) is formed along a housing (12) having a longitudinal opening located between said two flat outer faces (11), and each of the pusher members (50) comprises a guide portion (51) inserted in said housing (12) of the support bar (10) so that it can slide out and into it in a direction parallel to the two flat outer faces (11) of the support bar (10), and an projecting portion (52) adapted to press against an inner surface of said cavity (42) of the core (40) of the treadmill segment (25) when said pusher member (50) is displaced out of the housing (12).
6.- Dispositivo, de acuerdo con Ia reivindicación 5, caracterizado porque dicho elemento expansible (60) es en Ia forma de una manga expansible (60) dispuesta en dicho alojamiento (12) a Io largo de Ia barra de soporte (10) entre una superficie de fondo del alojamiento (12) y una superficie final de cada una de dichas porciones de guía (51) de los miembros empujadores (50), siendo dicha manga expansible (60) susceptible de ser conectada a una fuente de fluido a presión a través de unos medios de válvula asociados a Ia barra de soporte (10).6. Device, according to claim 5, characterized in that said expandable element (60) is in the form of an expandable sleeve (60) arranged in said housing (12) along the support bar (10) between a bottom surface of the housing (12) and an end surface of each of said guide portions (51) of the pusher members (50), said expandable sleeve (60) being capable of being connected to a source of pressurized fluid through valve means associated with the support bar (10).
7.- Dispositivo, de acuerdo con Ia reivindicación 6, caracterizado porque el miembro empujador (50) tiene unos resaltos (53) formados junto a un extremo interior de Ia porción de guía (51), y dicha abertura longitudinal del alojamiento (12) de Ia barra de soporte (10) tiene unos rebordes que interfieren con dichos resaltos (53), por Io que el miembro empujador (50) está retenido en el alojamiento (12) con posibilidad de un deslizamiento limitado. 7. Device, according to claim 6, characterized in that the pusher member (50) has projections (53) formed next to an inner end of the guide portion (51), and said longitudinal opening of the housing (12) of the support bar (10) has flanges that interfere with said projections (53), whereby the pusher member (50) is retained in the housing (12) with the possibility of limited sliding.
8.- Dispositivo, de acuerdo con Ia reivindicación 7, caracterizado porque, en al menos un extremo de Ia barra de soporte (10) sobresaliente del rodillo pisador (20), Ia abertura longitudinal del alojamiento (12) tiene un ensanchamiento (13) de tamaño suficiente para permitir el paso de las porciones de guía (51) de los miembros empujadores (50).8. Device, according to claim 7, characterized in that, at least one end of the support bar (10) protruding from the treadmill (20), the longitudinal opening of the housing (12) has a widening (13) of sufficient size to allow passage of the guide portions (51) of the pusher members (50).
9.- Dispositivo, de acuerdo con Ia reivindicación 8, caracterizado porque en el interior de una porción del alojamiento (12) enfrentada a dicho ensanchamiento (13) está fijado un tope (14) para una retención de los miembros empujadores (50) en el interior del alojamiento (12) de Ia barra de soporte (10) frente a un desplazamiento en Ia dirección de Ia línea central (15).9. Device, according to claim 8, characterized in that within a portion of the housing (12) facing said widening (13) a stop (14) is fixed for a retention of the pushing members (50) in the interior of the housing (12) of the support bar (10) facing a displacement in the direction of the central line (15).
10.- Dispositivo, de acuerdo con Ia reivindicación 9, caracterizado porque cada segmento pisador (25) está montado de manera giratoria sobre su correspondiente núcleo (40) por medio de un par de rodamientos (26), los cuales están adaptados además para efectuar una retención del segmento pisador (25) sobre su correspondiente núcleo (40) frente a un desplazamiento en una dirección axial.10. Device, according to claim 9, characterized in that each tread segment (25) is rotatably mounted on its corresponding core (40) by means of a pair of bearings (26), which are also adapted to perform a retention of the treadmill segment (25) on its corresponding core (40) against a displacement in an axial direction.
11.- Dispositivo, de acuerdo con Ia reivindicación 10, caracterizado porque entre cada dos segmentos pisadores (25) adyacentes está dispuesto al menos un separador (27) fijado al núcleo (40) de uno de los dos segmentos pisadores (25) adyacentes y en contacto deslizante con una superficie lateral del núcleo (40) del otro de los dos segmentos pisadores (25) adyacentes.11. Device, according to claim 10, characterized in that between each two adjacent tread segments (25) there is at least one separator (27) fixed to the core (40) of one of the two adjacent tread segments (25) and in sliding contact with a lateral surface of the core (40) of the other of the two adjacent tread segments (25).
12.- Dispositivo, de acuerdo con Ia reivindicación 11 , caracterizado porque junto a cada uno de los dos segmentos pisadores (25) situados en los extremos del rodillo pisador (20) está dispuesto al menos un tope (28) fijado a una de las caras exteriores planas (11) de Ia barra de soporte (10) y en contacto deslizante con una superficie lateral del núcleo (40) del correspondiente segmento pisador (25). 12. Device according to claim 11, characterized in that next to each of the two tread segments (25) located at the ends of the treadmill (20) at least one stop (28) is fixed to one of the flat outer faces (11) of the support bar (10) and in sliding contact with a lateral surface of the core (40) of the corresponding treadmill segment (25).
PCT/ES2006/000657 2005-12-14 2006-11-27 Pressure roller device for a machine that is used to cut wound laminar material WO2007068771A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES06841710.4T ES2632119T3 (en) 2005-12-14 2006-11-27 Treadmill device for winding sheet cutting machine
PL06841710T PL1961684T3 (en) 2005-12-14 2006-11-27 Pressure roller device for a machine that is used to cut wound laminar material
CA2633059A CA2633059C (en) 2005-12-14 2006-11-27 Pressure roller device for a wound web material cutting machine
EP06841710.4A EP1961684B1 (en) 2005-12-14 2006-11-27 Pressure roller device for a machine that is used to cut wound laminar material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200503076A ES2302416B1 (en) 2005-12-14 2005-12-14 PISTOR ROLLER DEVICE FOR WINDING LAMINAR MATERIAL CUTTING MACHINE.
ESP200503076 2005-12-14

Publications (2)

Publication Number Publication Date
WO2007068771A2 true WO2007068771A2 (en) 2007-06-21
WO2007068771A3 WO2007068771A3 (en) 2007-08-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2006/000657 WO2007068771A2 (en) 2005-12-14 2006-11-27 Pressure roller device for a machine that is used to cut wound laminar material

Country Status (5)

Country Link
EP (1) EP1961684B1 (en)
CA (1) CA2633059C (en)
ES (2) ES2302416B1 (en)
PL (1) PL1961684T3 (en)
WO (1) WO2007068771A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110143468A (en) * 2019-05-05 2019-08-20 广东盈通新材料有限公司 A kind of rewinding machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026491A (en) * 1975-12-31 1977-05-31 Theodore Bostroem Winder drums for strip slitting lines
US4209138A (en) * 1978-06-01 1980-06-24 RJM Manufacturing, Inc. Tape winding apparatus
US4218029A (en) * 1979-08-16 1980-08-19 Voest-Alpine Aktiengesellschaft Upcoiler
US6196494B1 (en) * 1998-10-08 2001-03-06 Goldenrod Corporation Expanding shaft
US6079662A (en) * 1999-03-31 2000-06-27 Tidland Corporation Slip shaft assembly having core axial position fixing mechanism
US20040075011A1 (en) * 2002-10-18 2004-04-22 John Michel Winding machine and method using interlocked rim wheels

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of EP1961684A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110143468A (en) * 2019-05-05 2019-08-20 广东盈通新材料有限公司 A kind of rewinding machine
CN110143468B (en) * 2019-05-05 2024-05-07 广东盈通新材料有限公司 Rewinding machine

Also Published As

Publication number Publication date
ES2632119T3 (en) 2017-09-11
CA2633059C (en) 2012-04-24
EP1961684A4 (en) 2011-06-08
EP1961684A2 (en) 2008-08-27
ES2302416A1 (en) 2008-07-01
WO2007068771A3 (en) 2007-08-02
ES2302416B1 (en) 2009-06-10
CA2633059A1 (en) 2007-06-21
EP1961684B1 (en) 2017-04-26
PL1961684T3 (en) 2017-10-31

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