WO2011151487A1 - Device for installing and removing an insertion roller for a flexographic machine - Google Patents
Device for installing and removing an insertion roller for a flexographic machine Download PDFInfo
- Publication number
- WO2011151487A1 WO2011151487A1 PCT/ES2011/000177 ES2011000177W WO2011151487A1 WO 2011151487 A1 WO2011151487 A1 WO 2011151487A1 ES 2011000177 W ES2011000177 W ES 2011000177W WO 2011151487 A1 WO2011151487 A1 WO 2011151487A1
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- WIPO (PCT)
- Prior art keywords
- roller
- installation
- introducer
- removal device
- introducer roller
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F5/00—Rotary letterpress machines
- B41F5/24—Rotary letterpress machines for flexographic printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
- B41F13/34—Cylinder lifting or adjusting devices
- B41F13/40—Cylinder lifting or adjusting devices fluid-pressure operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F5/00—Rotary letterpress machines
- B41F5/04—Rotary letterpress machines for printing on webs
- B41F5/16—Rotary letterpress machines for printing on webs for multicolour printing
- B41F5/18—Rotary letterpress machines for printing on webs for multicolour printing using one impression cylinder co-operating with several forme cylinders
Definitions
- the present utility model concerns a device intended to install and remove an introducer roller in a flexographic machine, in particular for a central drum flexographic machine, which makes it possible to perform said action in a simple and comfortable manner and with minimal interference with the printing groups Background of the invention
- the introducer roller is part of an assembly comprising a first guide roller and the introducer roller itself that is applied as a treadmill on the web in the form of a strip that after surrounding said guide roller It is applied on the drum.
- This introducer roller is disposed on top of a printing drum and is mounted on tilting arms that support it by end shafts provided with bearings, housed in respective seats of said arms and held by immobilization elements (in general jaws with threaded release means accessible by knobs), said arms having dynamic fluid cylinders for raising and lowering the roller in relation to the surface of the drum and allowing the arrangement of the sheet material.
- the invention proposes a solution other than prior art devices that facilitates the assembly and disassembly of said introducer cylinder in combination with a light introducer roller.
- the present invention concerns a device for installation and removal of an introducer roller in a flexographic machine, in the role of a tracer of the sheet material in its access on the top of a printing drum, said device comprising tilting arms that support said roller introducer by end axes provided with bearings, housed in respective seats and held by immobilization elements, which tilting arms have associated fluid dynamic cylinders for raising and lowering said introducer roller in relation to the surface of said printing drum.
- the device proposed by the present invention is characterized in that a support path of said introducer roller is provided once it has been released from said immobilization elements, which allows the printing drum to move away, moving the introducer roller along the mentioned support path.
- the device of the present invention includes a light roller to be used as the introducer roller, which comprises a pair of end disks, each of which has one of said end shafts formed, a carbon fiber jacket attached to said end disks, and an elastomeric coating disposed on said carbon fiber jacket.
- two fixing members are provided that interact with said immobilization elements in the immobilization position, blocking their movement.
- Fig. 1 is a side elevation view of the device proposed by the present invention, for an exemplary embodiment, as well as of the elements of the flexographic machine with which it is associated;
- Fig. 2 is a perspective view of the device proposed by the present invention, for the same example of embodiment of Fig. 1, where the introducer roller is held in respective seats of swinging arms by immobilization elements;
- Fig. 3 is a perspective view analogous to that of Fig. 2, but illustrating the immobilization elements in a position that allows the introduction of the introducer roller;
- Fig. 4 is another perspective view of the device proposed by the present invention, which differs from that of Fig. 3 in that it illustrates the introducer roller once removed from its respective seats;
- Figs. 5a and 5b are enlarged detailed views showing part of the introducer roller supported by a respective track of the device proposed by the present invention, for alternate embodiments;
- Fig. 6 is a cross-sectional view of a light introducer roller that is part of the device of the present invention.
- Fig. 7 is a partial perspective view of an alternative drive of the tilting arms carrying the introducer roller.
- the present invention concerns a device for installation and removal of an introducer roller 4 in a flexographic machine (not fully illustrated), in the role of a trader of the sheet material 13 in its access on the top of a drum of print 1 (partially illustrated in Fig. 1), said device comprising tilting arms 2, 3, around joints A1, which support the introducer roller 4 by end shafts 4a provided with bearings 5, housed in respective seats 6 (see Fig. 4) and retained by immobilization elements 7, which tilting arms 2, 3 have associated fluid dynamic cylinders 8 for raising and lowering said introducer roller 4 in relation to the surface of the printing drum 1.
- Said support path comprises, for the illustrated embodiment, two coplanar tracks 9, 10, spaced apart so as to be able to receive on them the ends of the introducer roller 4, oriented transversely, allowing a movement of the introducer roller 4 on the tracks 9, 10 and a stop 11 having been provided in the extreme zones of each track 9, 10 to limit said displacement.
- the elements of the introducer roller 4 that run along the tracks 9, 10 are the bearings 5, and for the exemplary embodiment of Fig. 5a are the end shafts 4a.
- the two coplanar tracks 9, 10 are fixed to respective walls of a bench (not illustrated) of said flexographic machine, or to a support (not illustrated) thereof.
- the coplanar tracks 9, 10, comprised of the device proposed by the invention are substantially horizontal, or slightly inclined, to facilitate manual removal of the introducer roller 4 rolling thereon, without the need to perform a great effort.
- the said immobilization elements 7 can pivot between an immobilization position and a second position in which they establish a link bridge with said tracks 9, 10.
- the immobilization elements 7 are fixed to the tilting arms 2, 3 through two joints a1, as can be seen in particular in Fig. 4
- the device proposed by the invention comprises two fixing members that interact with the immobilization elements 7 in the immobilization position, blocking their movement, each of which comprises, for the illustrated embodiment, a lever 11 and a knob of manual grip 12 threaded on said lever 11, said lever 11 being articulated to pivot until it reaches an interaction position with one of the immobilization elements 7, in which it is caught between said manual grip knob 12 and a edge of one of said tilting arms 2, 3, situation illustrated by Figs. 1 and 2.
- Figs. 3 and 4 the levers 11 are illustrated in their resting position, in which they do not interact with the immobilization members 7.
- the levers 11 are attached, by means of two joints a2, to the swinging arms 2, 3.
- the introducer roller 4 is a light roller comprising a pair of end discs 14 made, for example, of steel, a carbon fiber jacket 15 fixed at its ends to a cylindrical support surfaces 14a formed on said end discs 14, and an elastomeric coating 16, made for example of rubber or other elastomeric material, applied on said carbon fiber jacket 15.
- Each of the end discs 14 has one of the end axes 4a of the roller formed. introducer 4 extending out.
- This construction of the light introducer roller 4 is similar to that of a conventional roller, in which the jacket is made of steel, but with the difference that the steel jacket is replaced by said carbon fiber jacket 15, which has a weight less than half the weight of the steel jacket while offering comparable mechanical performance, and in some aspects superior, to those of a steel jacket.
- Fig. 7 there are shown alternative actuation means of the tilting arms 2, 3, mentioned, at whose end the seat 6, bearing 5 and clamping device 7 of the introducer roller 4 are defined.
- the fluid dynamic cylinders 8, located inside the bed act at an intermediate point of the arm 2, in the embodiment of Fig. 7, the connection of the fluid dynamic cylinder 8, located outside the bench, it is made in a bolt 22 that is integral, perpendicular to the end of a lever 21, coaxially pulled and rigidly by a fixation 20, by a region of greater width, opposite bolt 22, to the articulation A1 of the tilting arms 2 , 3.
- Fig. 7 there are shown alternative actuation means of the tilting arms 2, 3, mentioned, at whose end the seat 6, bearing 5 and clamping device 7 of the introducer roller 4 are defined.
- the connection of the fluid dynamic cylinder 8, located outside the bench it is made in a bolt 22 that is integral, perpendicular to the end of a lever 21, coaxially pulled and rigidly by a fixation 20, by a region
- friction bushings 23 are indicated that delimit a central region of said joint A1 that rests on a support wall of the bed, which it crosses. In this way, when acting on the pin 22, the lever 21 will rotate and with it the joint A1 that will drag the swing arm 2, 3 towards an operative position.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The device is intended for an insertion roller (4) that rolls over the laminar material (13) as it enters the upper part of a printing drum (1), said device comprising tilting arms (2, 3) that support the insertion roller (4) at end shafts (4a) provided with bearings (5) housed in respective seats (6) and retained by immobilizing elements (7). The aforementioned tilting arms (2, 3) are associated with fluid-dynamic cylinders (8) for raising and lowering the insertion roller (4) in relation to the surface of the printing drum (1). The insertion roller (4) is a lightweight roller with a carbon fibre sleeve, and a supporting path is provided to support and guide the insertion roller (4) as it moves in relation to the printing drum (1) once released from the immobilizing elements (7).
Description
DISPOSITIVO DE INSTALACIÓN Y EXTRACCIÓN DE UN RODILLO INTRODUCTOR INSTALLATION AND REMOVAL DEVICE FOR AN INTRODUCING ROLLER
PARA UNA MÁQUINA FLEXOGRÁFICA FOR A FLEXOGRAPHIC MACHINE
Campo de la técnica Technical field
El presente modelo de utilidad concierne a un dispositivo previsto para instalar y extraer un rodillo introductor en una máquina flexográfica, en particular para una máquina flexográfica de tambor central, que posibilita realizar dicha acción de una manera sencilla y cómoda y con una mínima interferencia con los grupos de impresión Antecedentes de la invención The present utility model concerns a device intended to install and remove an introducer roller in a flexographic machine, in particular for a central drum flexographic machine, which makes it possible to perform said action in a simple and comfortable manner and with minimal interference with the printing groups Background of the invention
En una máquina flexográfica de tambor central el rodillo introductor forma parte de un conjunto que comprende un primer rodillo de guiado y el propio rodillo introductor que se aplica a modo de pisador sobre el material laminar en forma de banda que tras rodear a dicho rodillo de guiado se aplica sobre el tambor. In a central drum flexographic machine, the introducer roller is part of an assembly comprising a first guide roller and the introducer roller itself that is applied as a treadmill on the web in the form of a strip that after surrounding said guide roller It is applied on the drum.
Este rodillo introductor se dispone sobre la parte superior de un tambor de impresión y va montado en unos brazos basculantes que lo soportan por unos ejes extremos provistos de unos cojinetes, alojados en unos respectivos asientos de dichos brazos y retenidos por unos elementos de inmovilización (en general unas mordazas con unos medios de liberación por roscado accesibles por unos pomos), teniendo asociados dichos brazos unos cilindros fluido dinámicos para elevación y descenso del rodillo en relación a la superficie del tambor y permitir la disposición del material laminar. This introducer roller is disposed on top of a printing drum and is mounted on tilting arms that support it by end shafts provided with bearings, housed in respective seats of said arms and held by immobilization elements (in general jaws with threaded release means accessible by knobs), said arms having dynamic fluid cylinders for raising and lowering the roller in relation to the surface of the drum and allowing the arrangement of the sheet material.
Cuando dicho cilindro introductor debe ser retirado, y sustituido para acomodar a las condiciones del material laminar a tratar, o para una tarea de mantenimiento, es preciso liberar los dos extremos del rodillo, actuando sobre los citados elementos de inmovilización, lo que supone una tarea onerosa dada la posición en la parte superior de la máquina, junto a un grupo de impresión, y tomando en consideración el peso del rodillo. When said introducer cylinder must be removed, and replaced to accommodate the conditions of the sheet material to be treated, or for a maintenance task, it is necessary to release the two ends of the roller, acting on said immobilization elements, which is a task onerous given the position on the top of the machine, next to a printing group, and taking into account the weight of the roller.
Se conoce en el estado de la técnica una solución basada en la disposición de una camisa recambiable extraíble lateralmente y que se dispone sobre un cilindro con unos taladros a cuyo través se aplica aire a presión para sujetar la camisa al cilindro formando el rodillo, como está descrito en la patente ES 2 170 616. En este caso únicamente se extraería y sustituiría la camisa. It is known in the state of the art a solution based on the arrangement of a removable, laterally removable jacket that is arranged on a cylinder with holes through which air is applied under pressure to fasten the jacket to the cylinder forming the roller, as is described in patent ES 2 170 616. In this case only the shirt would be removed and replaced.
Este antecedente, sin embargo, supone igualmente una tarea de desmontaje con una cierta complejidad y el costo del conjunto y de su alimentación por aire a presión impone unas limitaciones para su aplicación general.
Por otro lado se conocen rodillos ligeros para ser usados en una máquina flexográfica. En tales rodillos ligeros, una camisa, la cual habitualmente está hecha de acero, está sustituida por una camisa hecha de fibra de carbono, significativamente más ligera que la camisa de acero. This antecedent, however, is also a task of disassembly with a certain complexity and the cost of the whole and its feeding by pressurized air imposes limitations for its general application. On the other hand, light rollers are known for use in a flexographic machine. In such light rollers, a jacket, which is usually made of steel, is replaced by a jacket made of carbon fiber, significantly lighter than the steel jacket.
La invención propone una solución distinta de los dispositivos del estado de la técnica que facilita el montaje y desmontaje del citado cilindro introductor en combinación con un rodillo introductor ligero. The invention proposes a solution other than prior art devices that facilitates the assembly and disassembly of said introducer cylinder in combination with a light introducer roller.
Exposición de la invención Exhibition of the invention
La presente invención concierne a un dispositivo para instalación y extracción de un rodillo introductor en una máquina flexográfica, en funciones de pisador del material laminar en su acceso sobre la parte superior de un tambor de impresión, comprendiendo dicho dispositivo unos brazos basculantes que soportan dicho rodillo introductor por unos ejes extremos provistos de unos cojinetes, alojados en unos respectivos asientos y retenidos por unos elementos de inmovilización, cuales brazos basculantes tienen asociados unos cilindros fluidodinámicos para elevación y descenso de dicho rodillo introductor en relación a la superficie de dicho tambor de impresión. The present invention concerns a device for installation and removal of an introducer roller in a flexographic machine, in the role of a tracer of the sheet material in its access on the top of a printing drum, said device comprising tilting arms that support said roller introducer by end axes provided with bearings, housed in respective seats and held by immobilization elements, which tilting arms have associated fluid dynamic cylinders for raising and lowering said introducer roller in relation to the surface of said printing drum.
A diferencia de las propuestas convencionales, el dispositivo propuesto por la presente invención se caracteriza porque se ha previsto un camino de soporte de dicho rodillo introductor una vez liberado de dichos elementos de inmovilización, que permite un alejamiento del tambor de impresión, moviendo el rodillo introductor a lo largo del citado camino de soporte. Además, el dispositivo de la presente invención incluye un rodillo ligero a ser usado como el rodillo introductor, el cual comprende un par de discos extremos, cada uno de los cuales tiene formado uno de dichos ejes extremos, una camisa de fibra de carbono fijada a dichos discos extremos, y un recubrimiento elastomérico dispuesto sobre dicha camisa de fibra de carbono. In contrast to conventional proposals, the device proposed by the present invention is characterized in that a support path of said introducer roller is provided once it has been released from said immobilization elements, which allows the printing drum to move away, moving the introducer roller along the mentioned support path. In addition, the device of the present invention includes a light roller to be used as the introducer roller, which comprises a pair of end disks, each of which has one of said end shafts formed, a carbon fiber jacket attached to said end disks, and an elastomeric coating disposed on said carbon fiber jacket.
Para un ejemplo de realización del dispositivo propuesto por la presente invención, se han previsto dos miembros de fijación que interactúan con dichos elementos de inmovilización en la posición de inmovilización, bloqueando su movimiento. For an embodiment of the device proposed by the present invention, two fixing members are provided that interact with said immobilization elements in the immobilization position, blocking their movement.
Breve descripción de los dibujos Brief description of the drawings
Las anteriores y otras ventajas y características se comprenderán más plenamente a partir de la siguiente descripción detallada de unos ejemplos de realización con referencia a los dibujos adjuntos, que deben tomarse a título ilustrativo y no limitativo, en los que:
la Fig. 1 es una vista en alzado lateral del dispositivo propuesto por la presente invención, para un ejemplo de realización, así como de los elementos de la máquina flexográfica a los que se encuentra asociado; The foregoing and other advantages and features will be more fully understood from the following detailed description of some embodiments with reference to the attached drawings, which should be taken by way of illustration and not limitation, in which: Fig. 1 is a side elevation view of the device proposed by the present invention, for an exemplary embodiment, as well as of the elements of the flexographic machine with which it is associated;
la Fig. 2 es una vista en perspectiva del dispositivo propuesto por la presente invención, para el mismo ejemplo de realización de la Fig. 1 , donde el rodillo introductor se encuentra retenido en unos respectivos asientos de unos brazos basculantes por unos elementos de inmovilización; Fig. 2 is a perspective view of the device proposed by the present invention, for the same example of embodiment of Fig. 1, where the introducer roller is held in respective seats of swinging arms by immobilization elements;
la Fig. 3 es una vista en perspectiva análoga a la de la Fig. 2, pero que ilustra a los elementos de inmovilización en una posición que permite la extracción del rodillo introductor; Fig. 3 is a perspective view analogous to that of Fig. 2, but illustrating the immobilization elements in a position that allows the introduction of the introducer roller;
la Fig. 4 es otra vista en perspectiva del dispositivo propuesto por la presente invención, que se diferencia de la de la Fig. 3 en que ilustra al rodillo introductor una vez extraído de sus respectivos asientos; Fig. 4 is another perspective view of the device proposed by the present invention, which differs from that of Fig. 3 in that it illustrates the introducer roller once removed from its respective seats;
las Figs. 5a y 5b son sendas vistas en detalle ampliadas que muestran a parte del rodillo introductor soportado por una respectiva pista del dispositivo propuesto por la presente invención, para sendos ejemplos de realización alternativos; Figs. 5a and 5b are enlarged detailed views showing part of the introducer roller supported by a respective track of the device proposed by the present invention, for alternate embodiments;
la Fig. 6 es una vista en sección transversal de un rodillo introductor ligero que forma parte del dispositivo de la presente invención; y Fig. 6 is a cross-sectional view of a light introducer roller that is part of the device of the present invention; Y
la Fig. 7 es una vista en perspectiva parcial de un accionamiento alternativo de los brazos basculantes portadores del rodillo introductor. Fig. 7 is a partial perspective view of an alternative drive of the tilting arms carrying the introducer roller.
Descripción detallada de unos ejemplos de realización Detailed description of some embodiments
Tal y como se aprecia en particular en las Figs. 1 a 4, la presente invención concierne a un dispositivo para instalación y extracción de un rodillo introductor 4 en una máquina flexográfica (no ilustrada al completo), en funciones de pisador del material laminar 13 en su acceso sobre la parte superior de un tambor de impresión 1 (ilustrado parcialmente en la Fig. 1), comprendiendo dicho dispositivo unos brazos basculantes 2, 3, alrededor de unas articulaciones A1 , que soportan al rodillo introductor 4 por unos ejes extremos 4a provistos de unos cojinetes 5, alojados en unos respectivos asientos 6 (ver Fig. 4) y retenidos por unos elementos de inmovilización 7, cuales brazos basculantes 2, 3 tienen asociados unos cilindros fluidodinámicos 8 para elevación y descenso de dicho rodillo introductor 4 en relación a la superficie del tambor de impresión 1. As can be seen in particular in Figs. 1 to 4, the present invention concerns a device for installation and removal of an introducer roller 4 in a flexographic machine (not fully illustrated), in the role of a trader of the sheet material 13 in its access on the top of a drum of print 1 (partially illustrated in Fig. 1), said device comprising tilting arms 2, 3, around joints A1, which support the introducer roller 4 by end shafts 4a provided with bearings 5, housed in respective seats 6 (see Fig. 4) and retained by immobilization elements 7, which tilting arms 2, 3 have associated fluid dynamic cylinders 8 for raising and lowering said introducer roller 4 in relation to the surface of the printing drum 1.
En el dispositivo propuesto por la invención se ha previsto un camino de soporte del rodillo introductor 4 una vez liberado de dichos elementos de inmovilización 7, que
permite un alejamiento del tambor de impresión 1 , moviendo el rodillo introductor 4 a lo largo del citado camino de soporte. In the device proposed by the invention there is provided a support path of the introducer roller 4 once released from said immobilization elements 7, which it allows a distance of the printing drum 1, moving the introducer roller 4 along said support path.
Dicho camino de soporte comprende, para el ejemplo de realización ilustrado, dos pistas coplanarias 9, 10, distanciadas para poder recibir sobre las mismas unos extremos del rodillo introductor 4, orientado transversalmente, permitiendo un desplazamiento del rodillo introductor 4 sobre las pistas 9, 10 y habiéndose previsto un tope 11 en las zonas extremas de cada pista 9, 10 para limitar dicho desplazamiento. Said support path comprises, for the illustrated embodiment, two coplanar tracks 9, 10, spaced apart so as to be able to receive on them the ends of the introducer roller 4, oriented transversely, allowing a movement of the introducer roller 4 on the tracks 9, 10 and a stop 11 having been provided in the extreme zones of each track 9, 10 to limit said displacement.
Para el ejemplo de realización de la Fig. 5b, los elementos del rodillo introductor 4 que ruedan por las pistas 9, 10 son los cojinetes 5, y para el ejemplo de realización de la Fig. 5a son los ejes extremos 4a. For the exemplary embodiment of Fig. 5b, the elements of the introducer roller 4 that run along the tracks 9, 10 are the bearings 5, and for the exemplary embodiment of Fig. 5a are the end shafts 4a.
Aunque en dichas Figs. 5a y 5b solamente se ha ilustrado la pista 9, la disposición del rodillo introductor 4 sobre la otra pista 10 es igual a la ilustrada para la pista 9. Although in said Figs. 5a and 5b only track 9 has been illustrated, the arrangement of the introducer roller 4 on the other track 10 is the same as that illustrated for track 9.
En general las dos pistas coplanarias 9, 10 se encuentran fijadas a unas respectivas paredes de una bancada (no ilustrada) de dicha máquina flexográfica, o a un soporte (no ilustrado) de la misma. In general, the two coplanar tracks 9, 10 are fixed to respective walls of a bench (not illustrated) of said flexographic machine, or to a support (not illustrated) thereof.
En función del ejemplo de realización las pistas coplanarias 9, 10, comprendidas por el dispositivo propuesto por la invención, son sustancialmente horizontales, o ligeramente inclinadas, para facilitar la extracción manual del rodillo introductor 4 rodando por las mismas, sin la necesidad de realizar un gran esfuerzo. Depending on the exemplary embodiment, the coplanar tracks 9, 10, comprised of the device proposed by the invention, are substantially horizontal, or slightly inclined, to facilitate manual removal of the introducer roller 4 rolling thereon, without the need to perform a great effort.
Los citados elementos de inmovilización 7 pueden pivotar entre una posición de inmovilización y una segunda posición en la que establecen un puente de enlace con las citadas pistas 9, 10. The said immobilization elements 7 can pivot between an immobilization position and a second position in which they establish a link bridge with said tracks 9, 10.
Para ello, según el ejemplo de realización ilustrado, los elementos de inmovilización 7 se encuentran fijados a los brazos basculantes 2, 3 a través de sendas articulaciones a1, tal y como se aprecia en especial en la Fig. 4 For this, according to the illustrated embodiment, the immobilization elements 7 are fixed to the tilting arms 2, 3 through two joints a1, as can be seen in particular in Fig. 4
El dispositivo propuesto por la invención comprende dos miembros de fijación que interactúan con los elementos de inmovilización 7 en la posición de inmovilización, bloqueando su movimiento, cada uno de los cuales comprende, para el ejemplo de realización ilustrado, una palanca 11 y un pomo de agarre manual 12 roscado en dicha palanca 11 , estando dicha palanca 11 articulada para pivotar hasta alcanzar una posición de interacción con uno respectivo de los elementos de inmovilización 7, en la que éste queda atrapado entre dicho pomo de agarre manual 12 y un canto de uno de dichos brazos basculantes 2, 3, situación ilustrada por las Figs. 1 y 2. The device proposed by the invention comprises two fixing members that interact with the immobilization elements 7 in the immobilization position, blocking their movement, each of which comprises, for the illustrated embodiment, a lever 11 and a knob of manual grip 12 threaded on said lever 11, said lever 11 being articulated to pivot until it reaches an interaction position with one of the immobilization elements 7, in which it is caught between said manual grip knob 12 and a edge of one of said tilting arms 2, 3, situation illustrated by Figs. 1 and 2.
En las Figs. 3 y 4 se ilustran a las palancas 11 en su posición de reposo, en la que no interactúan con los miembros de inmovilización 7.
En particular las palancas 11 se encuentran unidas, mediante sendas articulaciones a2, a los brazos basculantes 2, 3. In Figs. 3 and 4 the levers 11 are illustrated in their resting position, in which they do not interact with the immobilization members 7. In particular, the levers 11 are attached, by means of two joints a2, to the swinging arms 2, 3.
Tal como muestra la Fig. 6, el rodillo introductor 4 es un rodillo ligero que comprende un par de discos extremos 14 hechos, por ejemplo, de acero, una camisa de fibra de carbono 15 fijada por sus extremos a unas superficies cilindricas de soporte 14a formadas en dichos discos extremos 14, y un recubrimiento elastomérico 16, hecho por ejemplo de caucho u otro material elastómero, aplicado sobre dicha camisa de fibra de carbono 15. Cada uno de los discos extremos 14 tiene formado uno de los ejes extremos 4a del rodillo introductor 4 extendiéndose hacia fuera. As Fig. 6 shows, the introducer roller 4 is a light roller comprising a pair of end discs 14 made, for example, of steel, a carbon fiber jacket 15 fixed at its ends to a cylindrical support surfaces 14a formed on said end discs 14, and an elastomeric coating 16, made for example of rubber or other elastomeric material, applied on said carbon fiber jacket 15. Each of the end discs 14 has one of the end axes 4a of the roller formed. introducer 4 extending out.
Esta construcción del rodillo introductor 4 ligero es parecida a la de un rodillo convencional, en el cual la camisa está hecha de acero, pero con la diferencia que la camisa de acero está sustituida por dicha camisa de fibra de carbono 15, la cual tiene un peso inferior a la mitad del peso de la camisa de acero mientras que ofrece unas prestaciones mecánicas comparables, y en algunos aspectos superiores, a las de una camisa de acero. This construction of the light introducer roller 4 is similar to that of a conventional roller, in which the jacket is made of steel, but with the difference that the steel jacket is replaced by said carbon fiber jacket 15, which has a weight less than half the weight of the steel jacket while offering comparable mechanical performance, and in some aspects superior, to those of a steel jacket.
Esta ligereza del rodillo introductor 4 en combinación con otras características del dispositivo de instalación y extracción de la presente invención facilitan en gran medida las operaciones de instalación y extracción del rodillo introductor 4 en la máquina flexográfica. This lightness of the introducer roller 4 in combination with other features of the installation and removal device of the present invention greatly facilitates the installation and removal operations of the introducer roller 4 in the flexographic machine.
En la Fig. 7 se muestran unos medios de accionamiento alternativos de los brazos basculantes 2, 3, citados, en cuyo extremo se define el asiento 6, cojinete 5 y dispositivo de sujeción 7 del rodillo introductor 4. A diferencia del accionamiento mostrado en la Fig. 4, en donde los cilindros fluidodinámicos 8, situados en el interior de la bancada, actúan en un punto intermedio del brazo 2, en la realización de la Fig. 7, la conexión del cilindro fluidodinámico 8, situado en el exterior de la bancada, se realiza en un bulón 22 que es solidario, perpendicular al extremo de una palanca 21 , calada coaxial y rígidamente por una fijación 20, por un región de mayor anchura, opuesta al bulón 22, a la articulación A1 de los brazos basculantes 2, 3. En la figura 7 se han señalado unos casquillos 23 de fricción que delimitan una región central de dicha articulación A1 que descansa en una pared de soporte de la bancada, a la que atraviesa. De esta manera al actuar sobre el bulón 22, la palanca 21 girará y con ella la articulación A1 que arrastrará al brazo basculante 2, 3 hacia una posición operativa. In Fig. 7 there are shown alternative actuation means of the tilting arms 2, 3, mentioned, at whose end the seat 6, bearing 5 and clamping device 7 of the introducer roller 4 are defined. Unlike the drive shown in the Fig. 4, wherein the fluid dynamic cylinders 8, located inside the bed, act at an intermediate point of the arm 2, in the embodiment of Fig. 7, the connection of the fluid dynamic cylinder 8, located outside the bench, it is made in a bolt 22 that is integral, perpendicular to the end of a lever 21, coaxially pulled and rigidly by a fixation 20, by a region of greater width, opposite bolt 22, to the articulation A1 of the tilting arms 2 , 3. In Fig. 7, friction bushings 23 are indicated that delimit a central region of said joint A1 that rests on a support wall of the bed, which it crosses. In this way, when acting on the pin 22, the lever 21 will rotate and with it the joint A1 that will drag the swing arm 2, 3 towards an operative position.
Un experto en la materia podría introducir cambios y modificaciones en los ejemplos de realización descritos sin salirse del alcance de la invención según está definido en las reivindicaciones adjuntas.
A person skilled in the art could introduce changes and modifications in the described embodiments without departing from the scope of the invention as defined in the appended claims.
Claims
1. - Dispositivo de instalación y extracción de un rodillo introductor para un máquina flexográfica, donde dicho rodillo introductor (4) actúa en funciones de pisador del material laminar (13) en su acceso sobre una parte superior de un tambor de impresión (1), comprendiendo dicho dispositivo de instalación y extracción unos brazos basculantes (2, 3) que soportan dicho rodillo introductor (4) por unos ejes extremos (4a) provistos de unos cojinetes (5) alojados en unos respectivos asientos (6) y retenidos por unos elementos de inmovilización (7), teniendo dichos brazos basculantes (2, 3) asociados unos cilindros fluidodinámicos (8) para elevación y descenso de dicho rodillo introductor (4) en relación con la superficie de dicho tambor de impresión (1), caracterizado porque el dispositivo de instalación y extracción comprende un camino de soporte para soportar y guiar dicho rodillo introductor (4) cuando está liberado de dichos elementos de inmovilización (7) y permitir unos movimientos de acercamiento o alejamiento del rodillo introductor (4) respecto al tambor de impresión (1) moviendo el rodillo introductor (4), deslizando o rodando a lo largo de dicho camino de soporte. 1. - Device for installing and removing an introducer roller for a flexographic machine, where said introducer roller (4) acts as a tracer of the sheet material (13) in its access on a top of a printing drum (1) , said installation and removal device comprising tilting arms (2, 3) supporting said introducer roller (4) by end shafts (4a) provided with bearings (5) housed in respective seats (6) and held by immobilization elements (7), said tilting arms (2, 3) having fluid dynamic cylinders (8) associated for raising and lowering said introducer roller (4) in relation to the surface of said printing drum (1), characterized in that The installation and removal device comprises a support path to support and guide said introducer roller (4) when it is released from said immobilization elements (7) and allow movements towards or away from the introducer roller (4) with respect to the printing drum (1) by moving the introducer roller (4), sliding or rolling along said support path.
2. - Dispositivo de instalación y extracción según la reivindicación 1 , caracterizado porque dicho rodillo introductor (4) es un rodillo ligero que comprende: un par de discos extremos (14), cada uno de los cuales tiene formado uno de dichos ejes extremos (4a); 2. - Installation and removal device according to claim 1, characterized in that said introducer roller (4) is a light roller comprising: a pair of end disks (14), each of which has one of said end axes formed ( 4a);
una camisa cilindrica, de fibra de carbono (15) fijada por sus extremos a dichos discos extremos (14); y a cylindrical jacket, of carbon fiber (15) fixed at its ends to said end disks (14); Y
un recubrimiento elastomérico (16) sobre dicha camisa de fibra de carbono (15). an elastomeric coating (16) on said carbon fiber jacket (15).
3. - Dispositivo de instalación y extracción según la reivindicación anterior, caracterizado porque dicho camino de soporte comprende dos pistas coplanarias (9,3. - Installation and removal device according to the preceding claim, characterized in that said support path comprises two coplanar tracks (9,
10), distanciadas para poder recibir sobre las mismas unos extremos del rodillo introductor (4), orientado transversalmente, permitiendo un desplazamiento de dicho rodillo introductor (4) sobre dichas pistas (9, 10) y habiéndose previsto un tope ( 1) en las zonas extremas de cada pista (9, 10) para limitar dicho desplazamiento. 10), spaced apart to be able to receive on them the ends of the introducer roller (4), oriented transversely, allowing a movement of said introducer roller (4) on said tracks (9, 10) and a stop (1) being provided in the extreme zones of each track (9, 10) to limit said displacement.
4.- Dispositivo de instalación y extracción según la reivindicación 2, caracterizado porque dichas pistas coplanarias (9, 10) son sustancialmente horizontales. 4. Installation and extraction device according to claim 2, characterized in that said coplanar tracks (9, 10) are substantially horizontal.
5.- Dispositivo de instalación y extracción según la reivindicación 2, caracterizado porque los citados elementos de inmovilización (7) pueden pivotar entre una posición de inmovilización y una segunda posición en la que establecen un puente de enlace con las citadas pistas (9, 10). 5. Installation and removal device according to claim 2, characterized in that said immobilization elements (7) can pivot between an immobilization position and a second position in which they establish a link bridge with said tracks (9, 10 ).
6.- Dispositivo de instalación y extracción según la reivindicación 5, caracterizado porque se han previsto dos miembros de fijación que interactúan con dichos elementos de inmovilización (7) en la posición de inmovilización, bloqueando su movimiento. 6. Installation and extraction device according to claim 5, characterized in that two fixing members are provided that interact with said immobilization elements (7) in the immobilization position, blocking their movement.
7.- Dispositivo de instalación y extracción según la reivindicación 6, caracterizado porque cada uno de dichos miembro de fijación comprende una palanca (11) y un pomo de agarre manual (12) roscado en dicha palanca (11), estando dicha palanca (11) articulada para pivotar hasta alcanzar una posición de interacción con uno respectivo de dichos elementos de inmovilización (7), en la que éste queda atrapado entre dicho pomo de agarre manual (12) y un canto de uno de dichos brazos basculantes (2, 3). 7. Installation and removal device according to claim 6, characterized in that each of said fixing member comprises a lever (11) and a manual grip knob (12) threaded on said lever (11), said lever (11) being ) articulated to pivot until reaching an interaction position with a respective one of said immobilization elements (7), in which it is caught between said manual grip knob (12) and a ridge of one of said tilting arms (2, 3 ).
8. - Dispositivo de instalación y extracción según una cualquiera de las reivindicaciones 3 ó 4, caracterizado porque dichas dos pistas coplanarias (9, 10) se encuentran fijadas a unas respectivas paredes de una bancada de dicha máquina flexográfica. 8. - Installation and removal device according to any one of claims 3 or 4, characterized in that said two coplanar tracks (9, 10) are fixed to respective walls of a bench of said flexographic machine.
9. - Dispositivo de instalación y extracción según una cualquiera de las reivindicaciones anteriores caracterizad porque dichos cilindros fluidodinámicos (8) están dispuestos en la parte interior de una bancada y su vástago está conectado a un bulón que sobresale de un punto intermedio de uno de dichos brazos basculantes (2, 3). 9. - Installation and removal device according to any one of the preceding claims characterized in that said fluid dynamic cylinders (8) are arranged in the inner part of a bench and its rod is connected to a bolt protruding from an intermediate point of one of said tilting arms (2, 3).
10. - Dispositivo de instalación y extracción según una cualquiera de las reivindicaciones de la 1 a la 8, caracterizado porque dichos cilindros fluidodinámicos (8) están dispuestos en la parte exterior de una bancada y su vástago está conectado a un bulón 22 de una palanca (21) calada y fija en la articulación (A1) de dichos brazos basculantes (2, 3). 10. - Installation and removal device according to any one of claims 1 to 8, characterized in that said fluid dynamic cylinders (8) are arranged on the outside of a bed and its rod is connected to a pin 22 of a lever (21) openwork and fixed in the joint (A1) of said swingarms (2, 3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11789293.5A EP2578404A4 (en) | 2010-06-01 | 2011-06-01 | Device for installing and removing an insertion roller for a flexographic machine |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESUS201000589 | 2010-06-01 | ||
| ES201000589U ES1072698Y (en) | 2010-06-01 | 2010-06-01 | DEVICE FOR PLACEMENT AND EXTRACTION OF AN INTRODUCTIVE ROLLER ENUNA FLEXOGRAPHIC MACHINE |
| ESUS201001074 | 2010-10-26 | ||
| ES201001074U ES1073859Y (en) | 2010-10-26 | 2010-10-26 | DEVICE FOR INSTALLATION AND EXTRACTION OF AN INTRODUCTIVE ROLLER FOR A FLEXOGRAPHIC MACHINE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011151487A1 true WO2011151487A1 (en) | 2011-12-08 |
Family
ID=45066215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2011/000177 WO2011151487A1 (en) | 2010-06-01 | 2011-06-01 | Device for installing and removing an insertion roller for a flexographic machine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2578404A4 (en) |
| WO (1) | WO2011151487A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3408721A1 (en) * | 1983-03-10 | 1984-09-13 | Société d'Applications Générales d'Electricité et de Mécanique SAGEM, Paris | Removable pressure roller system for a printer or the like |
| EP0511496A1 (en) * | 1991-04-09 | 1992-11-04 | Bobst S.A. | Rotary printing machine with a detachable cylinder |
| DE10018923A1 (en) * | 1999-05-27 | 2000-12-14 | Heidelberger Druckmasch Ag | Safety guard for printing machine separates functions of pressure roller and guard, allowing guard to be moved away from safe position for cleaning, maintenance or removal |
| ES2170616A1 (en) | 1998-10-09 | 2002-08-01 | Windmoeller & Hoelscher | Press roller with interchangeable external sleeve |
| WO2004050366A1 (en) * | 2002-12-02 | 2004-06-17 | Mps Holding B.V. | Printing module, and printing machine provided with such printing module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10034933A1 (en) * | 2000-07-11 | 2002-01-24 | Paul Sauer Gmbh & Co Walzenfab | Roller for technical or graphic purposes, e.g. in printing or lacquering machine, for transferring liquid media or for mechanical applications, is based on non-metallic material, e.g. ceramic or polymer composite core and plastics mantle |
| DE502007002964D1 (en) * | 2006-11-10 | 2010-04-08 | Windmoeller & Hoelscher | PRINTING MACHINE FOR PRINTING A PRINTED RAIL |
-
2011
- 2011-06-01 WO PCT/ES2011/000177 patent/WO2011151487A1/en active Application Filing
- 2011-06-01 EP EP11789293.5A patent/EP2578404A4/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3408721A1 (en) * | 1983-03-10 | 1984-09-13 | Société d'Applications Générales d'Electricité et de Mécanique SAGEM, Paris | Removable pressure roller system for a printer or the like |
| EP0511496A1 (en) * | 1991-04-09 | 1992-11-04 | Bobst S.A. | Rotary printing machine with a detachable cylinder |
| ES2170616A1 (en) | 1998-10-09 | 2002-08-01 | Windmoeller & Hoelscher | Press roller with interchangeable external sleeve |
| DE10018923A1 (en) * | 1999-05-27 | 2000-12-14 | Heidelberger Druckmasch Ag | Safety guard for printing machine separates functions of pressure roller and guard, allowing guard to be moved away from safe position for cleaning, maintenance or removal |
| WO2004050366A1 (en) * | 2002-12-02 | 2004-06-17 | Mps Holding B.V. | Printing module, and printing machine provided with such printing module |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2578404A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2578404A4 (en) | 2016-01-20 |
| EP2578404A1 (en) | 2013-04-10 |
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